Drugs & Alcohol

Demi Lovato could have died Tuesday from her overdose -- it was that serious -- sources connected to the singer tell TMZ.

We're told the 911 call did not come a minute too soon, because Demi was in dire straits. "She could have died," said a source with firsthand knowledge. Demi was unconscious when she was discovered at around 11:30 AM and the 911 call was placed.

TMZ broke the story ... Demi received Narcan to counter the effects of opioids. As we reported, Demi and those who were at the house refused to disclose the drug or drugs that caused her to OD.

TMZ obtained the 911 call ... in which the person at Demi's home asked the dispatcher if the emergency vehicles could come without sirens -- presumably because they wanted to keep the OD on the down-low. The dispatcher informed the caller the sirens would stay on.

Demi remains hospitalized. We're told those around her want her to enter a rehab facility when she's released, but ultimately the decision is squarely hers.

Demi Lovato's presence was felt even in her absence ... thanks to the Cheat Codes.

The EDM trio -- best known for their hit song "No Promises" featuring Demi -- replaced Demi when she was forced to cancel her headlining appearance Thursday in Atlantic City. The Cheat Codes stepped in and, of course, gave Demi a huge shout-out and dedicated "No Promises" to her.

As we reported .... Demi canceled her gigs in Atlantic City and Toronto. FOX also yanked her "Beat Shazam" guest appearance that was scheduled to air the night she was hospitalized.

Colombian narcotics officer Sombra -- a decorated German Shepherd -- is on the run after one of the most powerful drug cartels put a $70k bounty on her furry head.

According to reports, the Urabeños drug gang, Colombia's most feared criminal organization, put the hit on Sombra after the 6-year-old pooch recently sniffed out nearly 10 TONS of cocaine in 2 separate busts. Who's a good doggie??

Sombra (Shadow in English) had been working Colombia's port cities, but officials have moved her beat to the Bogota airport because it's outside the Urabeños turf. Translation: She's on desk duty, for her own safety.

The gang is known for taking out hits on its enemies, but usually in the hundreds of dollars.

Demi Lovato's friends wanted to keep her OD on the DL ... asking paramedics to come to her house without sirens.

In the 911 call from Lovato's house -- obtained by TMZ -- the caller remains calm while taking orders from the dispatcher. As the ambulance approached, the dispatcher let the caller know they'd soon hear sirens to which the caller responded, requesting they be shut off ... seemingly to keep the situation private from neighbors. However, the dispatcher says that's just not possible.

We broke the story ... Demi was rushed to an L.A. hospital after suffering an overdose, which law enforcement believed was from heroin. However, a source close to the singer said it wasn't heroin, but refused to divulge the source of the OD.

Demi's emergency came after an all-night party that started with a birthday celebration for one of her backup dancers at Saddle Ranch in WeHo.

As we reported ... Lovato had been struggling with drugs for weeks, even before last month's public confession of a relapse on her song, "Sober."

Check out the initial dispatch audio (below). You hear the dispatcher for the L.A. Fire Department calling LAPD and saying, "I thought maybe you guys better go on something like this." It's unclear if he's saying the LAPD should go out because Demi is a celebrity, or because of a drug overdose. The call is redacted, so we don't know if Demi's name or the OD was mentioned.

Demi Lovato was found unconscious in her bed after a long night of partying, and a panicked assistant called 911 ... TMZ has learned.

Sources familiar with the matter tell us ... Demi had invited some of her friends back to her house early Tuesday morning after a party on the Sunset Strip to celebrate the birthday of one of her backup dancers.

It's unclear how long the party lasted, but Demi went to sleep and, at around 11 AM Tuesday one of her assistants became concerned because Demi hadn't come out of her bedroom. The assistant entered the room and found Demi unresponsive, tried waking her and when she couldn't ... she called 911.

When paramedics arrived Demi was still unconscious. Someone at the home told paramedics Demi had been partying all night, and we're told EMTs then determined they were dealing with an overdose. They quickly administered Narcan -- an antidote to opioid ODs.

Demi Lovato's team tried to stage an intervention and get her help for her drug addiction, but the singer blew them off ... TMZ has learned.

Sources close to Demi tell us members of her team noticed she was in a bad place a few weeks ago, and even confronted her about it. We're told they offered assistance to get her back to sobriety. The plan was to urge her into a rehab program.

We're told the intervention attempt was not successful -- Demi refused and continued to party, instead. Other sources tell us she tried to make it seem like everything was okay, but her struggle became obvious shortly before Tuesday's overdose.

There's also this -- Lovato and her longtime manager, Phil McIntyre, parted ways a couple months ago. Although neither has said why they broke off their professional relationship ... we're told Phil had a hand in the intervention efforts.

Color Me Badd singer Mark Calderon got a heads-up his bandmate, Bryan Abrams, was a mess hours before their onstage fight ... and it came from Bryan's wife.

According to Mark's statement to police, obtained by TMZ, the singer said Bryan was clearly intoxicated ahead of their show in Tyre, NY. He added, Bryan's wife texted him before the concert about Bryan being "wasted." So, Mark says he went into the show with concerns.

He also says Bryan assured him he'd be just fine and they'd kill it once the show started. Mark was still worried, but says they went on because they had a contractual obligation.

Mark says Bryan screwed up lyrics during their very first song, then disappeared for the rest of the concert.

Well, at least until he ran on stage and slammed Mark, who ended up injured ... while Bryan ended up in cuffs.

Demi Lovato's upcoming concert North of the border has been canceled.

Demi was scheduled to perform Sunday, July 29 at Echo Beach in Canada at the RBCxMusic benefit for Kids Help Phone with special guest Jason Mraz, but in light of her recent OD ... it's not happening.

A rep from Live Nation Canada tells us tickets will be automatically refunded.

Common is strongly siding with his ex-GF, Serena Williams -- telling TMZ Sports someone is trying to "take her down" by drug testing her more than usual ... and it's all because she's a black woman.

Hours before we spoke with Common, Serena went off about being drug tested more than any other female tennis player ... and accused officials of "discrimination."

Common clearly agrees -- saying, "As a black woman, do you think she's getting discriminated against? YES."

"If they're testing her more than anyone else, it's a reason for that. And there's conscious and subconscious and I would say conscious is the fact that she's a black woman and they're looking for some reason to be able to take her down and discredit her ... but she's the queen!"

Demi Lovato's overdose after an all-night party has been a sad shock to her fans and friends ... including her old friend, Justin Bieber.

JB was out in L.A. Wednesday when a photog asked him if he's spoken to Demi yet ... he says he hasn't, but he's sending out prayers to her and her family. He also calls the situation "terrible" and "very sad."

The Demi news apparently came as a stunner to Justin too ... because he says he thought she was sober.

We broke the story ... Lovato had actually been struggling with drugs weeks before her OD, even before she confessed last month she had relapsed in her song "Sober."

Justin must have missed that revelation but, as we know ... he's been busy with some major stuff going on in his own life.

Demi Lovato's overdose came at the end of a party at her home that lasted all night, but when EMTs and police arrived to help her ... the partygoers were nowhere in sight ... law enforcement sources tell TMZ.

Our sources say when first responders arrived at Demi's Hollywood Hills home Tuesday just before noon, they were told there had been a party. We're told members of Demi's team were present when first responders arrived, but provided no information about the drug or drugs that caused her to OD.

It's unclear when the party broke up, or if people scattered once it became apparent Demi was in trouble.

TMZ broke the story ... the night before the emergency, Demi was at the Saddle Ranch restaurant/bar celebrating the birthday of one of her backup dancers and she seemed happy and lucid. We don't know if the people who were at her home were part of the group that partied at Saddle Ranch.

Demi Lovato's overdose was not a shock to some of her friends, who say there were big warning signs for weeks that she had lost her battle for sobriety.

Friends of Demi tell us ... even before she released her song, "Sober," confessing she had fallen off the wagon, it was apparent to them she had slipped back into her drug use. They say the signs became more alarming as the days passed, and one friend says he knew for weeks she was in the danger zone ... when he saw her this week it was apparent she was in trouble.

Another warning sign ... she had a big falling out with her sober coach earlier in the month, accusing him of betraying her.

It seems Demi was able to compartmentalize her social life, because other friends say they didn't see this coming. One friend says he was at her home less than 2 weeks ago and she seemed great.

TMZ broke the story ... Demi OD'd at her home Tuesday and law enforcement sources say it was an apparent heroin overdose, but a source close to Demi says it was NOT heroin. When they arrived, she was unconscious and they used Narcan to bring her back. Narcan is used to counter overdoses of opioids.

Macklemore offered Demi Lovato some strong words of encouragement because -- as the rapper said at his concert while dedicating a track to her -- he's been there before.

Macklemore was performing at Xfinity Center in Massachusetts Tuesday night when he dedicated "Otherside" to Demi following news she'd been hospitalized for an overdose. The 2009 track touches on drug addiction and what it's like to fall into a seemingly hopeless downward spiral.

Macklemore -- who went to rehab at 25 -- called addiction a disease "that ties us addicts together." He called Demi his "sister in recovery" and added he knows what it's like to slip. The Seattle rapper not only dedicated the track to Demi, but to anyone else struggling with addiction.

Randy Couture and his wife have a message for their friend, Demi Lovato -- "We love Demi and we're going to do whatever we can to help."

Couture has been helping Lovato train at Jay Glazer's Unbreakable gym in West Hollywood for years -- she's even credited him with helping her achieve her blue belt in Brazilian Jiu-Jitsu.

Randy says everyone in the gym has been well aware of her struggles with addiction -- and he was crushed to hear about her overdose on Tuesday.

But, Couture says the singer can count on his support and love as she begins to bounce back.

"Sometimes there are setbacks. We're here to help her get through them and keep moving forward."

Serena Williams is furious at the "random" drug tests in her sport -- claiming she's been singled out by officials and tested more than any other player ... and she's saying it's "discrimination."

The 36-year-old tennis superstar -- who just came in 2nd at Wimbledon -- went off Tuesday night on Twitter as she got ready to take another drug test.

"And it’s that time of the day to get 'randomly' drug tested and only test Serena. Out of all the players it’s been proven I’m the one getting tested the most."

"Discrimination? I think so. At least I’ll be keeping the sport clean #StayPositive."

She added, "But I’m ready to do whatever it takes to have a clean sport so bring it on. I’m excited."

Demi Lovato refused to tell paramedics what drug caused her to overdose, and law enforcement sources say no drugs were seized at her home.

Law enforcement sources say Lovato was not cooperative when EMTs worked on her at her home Tuesday morning. Those sources believed it was a heroin OD based on what they observed at her home, but a source close to Lovato tells us it was not heroin, though the source refused to divulge what caused the OD.

As we first reported, Demi was unconscious when paramedics arrived and she was brought back to consciousness with Narcan, which is used to counter the effects of opioids.

Our law enforcement sources say there is NO criminal investigation, because they did not seize any drugs and can't determine if Demi was in possession of an illegal substance.