Nurse!

Michael Lohan is out of a Massachusetts hospital after a medical scare last night -- but he's not out of the woods yet.

Lohan experienced chest pains and was rushed to the hospital as he was preparing for a celebrity boxing match. He was examined by docs there, but didn't stay the night.

His girlfriend, Kate Major, tells TMZ Lohan wants to be checked out by doctors in New York. He is scheduled to see a cardiologist this week.

Major says Lohan has been very conscious of his health lately -- watching what he eats and exercising -- but he's had heart attacks before.

Lohan had to be replaced in his celebrity boxing bout last night against Todd Poulton -- we don't know who he is either.

Brad was singing "Alcohol" when he fell -- but he got back up and finished the song before being taken to a Charleston hospital. He was released Sunday morning.

The Ikki Twin who is in a medically induced coma will not be taken out of the coma today as planned ... this according to her manager.

Erica "Rikki" Mongeon -- the "A Double Shot at Love" star who was involved in a car accident earlier this week outside of Pasadena -- was placed in the coma after doctors found blood on her brain after the crash.

According to Rikki's manager, doctors tried to take her off of the meds to reduce the swelling of the brain. But when they did that, the swelling did not subside-- so she's back on the meds

Docs are going to wait a few more days before they try again.

The Ikki Twin who is not in a medically induced coma is now saying her sister was rushed by ambulance to the hospital after a car crash earlier this week.

Vikki Ikki says sister Rikki was "screaming and grabbing her head" after their car collided with a semi -- and "was taken away in the ambulance to get checked out."

Upon arriving at the hospital, Vikki says doctors discovered two blood clots on her sister's brain and her "skull had cracked in half."

Yesterday, Vikki had told others a very different story -- that her sister thought she was fine and they drove to the hospital together and doctors performed a precautionary CAT scan after seeing a bump on her head.

The MTV star who was put into a medically induced coma after a car crash claimed she felt fine after the accident -- and drove to the hospital just to make sure she was okay ... but she wasn't.

Erica "Rikki" Mongeon -- star of "A Double Shot at Love" -- was a passenger in the car, along with her sister, when they collided with a semi.

Sources say Rikki's sister, Vikki, felt a bump on Rikki's head and they decided it would be a good idea to have it looked at.

When they got to the hospital, we're told doctors performed a CAT scan and found blood on her brain. They decided to immediately put Rikki -- one of the Ikki Twins -- into a medically induced coma.

Rikki is currently in ICU and we're told the plan is to take her out of the coma on Friday.

Rikki's manager says doctors are optimistic.

The stars of MTV's "A Double Shot at Love" were involved in a major car crash yesterday that left one girl in a medically induced coma.

We're told Erica "Rikki" Mongeon and Victoria "Vikki" Mongeon were passengers in a VW Jetta traveling through Bakersfield, CA at around 12:20 AM Tuesday when their car collided with a semi-truck.

We're told Vikki and the Jetta driver were not seriously injured -- but Rikki was rushed to the intensive care unit at a local hospital.

Gang Starr front man Guru is in a coma after suffering a heart attack yesterday.

The 43-year-old rapper -- real name Keith Elam -- is reportedly receiving treatment at a New York hospital ... where he is expected to undergo surgery later today.

According to his music partner -- DJ Premier -- the rapper is "fighting for his life." He is joined in the hospital by his sister Tricia, who said, "The family is handling it as best they can."

NYC police sources tell TMZ ice fell through a glass plate in the lobby area of a restaurant called Solo, sending shards of glass everywhere.

We're told only minor injuries were incurred.

UPDATE: Whew!!! Snooki is OK -- she just tweeted the above photo and this message: "Its okay Vin and I are still alive ... Omg roof just collapsed at the purim event! We thought the dj was beatin the beat hardcore but nope,the roof couldn't handle snooki and vin ..."

UPDATE 2: We're told Noth, Snooki,Vinny and a few others were covered in glass and escorted to a private room -- but the party is still going on strong.

Liev Schreiber rushed to the aid of a fan in the audience during his performance of Arthur Miller's "A View From the Bridge" in New York City last night.

According to a witness, a woman in the audience started screaming for help during the play. When the lights came up, it was revealed that her husband was slumped over in his seat.

That's when, according to the eye witness, "Liev Schreiber sprung to action." He came from behind the set of the stage and ran up to the seats of the man and woman to try and help as much as he could. There was a doctor in the audience (isn't there always?) and they provided medical attention until help arrived.

Gary Coleman suffered an apparent seizure this morning while on the set of "The Insider" and was rushed to the hospital ... according to sources on set.

We're told Dr. Drew was with Coleman at the time as part of some kind of panel -- and Dr. Drew actually helped Coleman until paramedics arrived.

Paramedics tell TMZ a male was transported from the studio at around 10:14 AM.

Coleman was hospitalized on January 6 after suffering what he called "a little seizure activity."

Coleman walked off the show last week, after the panel repeatedly asked him if he beat his wife.

Whitney's weirdness reaches its peak right before she's supposed to hit the high note -- when she suddenly turns around, walks over to a table behind her, and then spends an excessive amount of time gearing up for the big finish.

When Whitney finally gets ready, she comes back to the mic and belts out the chorus to the song ... and let's just say she gets an E for Effort.

Placido Domingo -- opera star and member of "The Three Tenors" -- will undergo surgery later this week after suffering abdominal pains while performing in Tokyo.

Domingo's rep tells TMZ the singer decided to fly to New York from Tokyo for a physical, where his doctors determined he needed "medically recommended preventive surgery."

In a truly scary moment during the Elimination Chamber event in St. Louis, some rogue pyrotechnics went off during The Undertaker's entrance -- and the WWE star was caught in the middle of a giant fireball.

But instead of doing the stop, drop and roll, the wrestler shook it off, threw his jacket to the floor and entered the ring.

We're told he was checked by medics before his match -- and his only injury was comparable to a sunburn on his chest.

Lil Wayne just had one of the gnarliest oral surgeries in the history of dentistry. We're told it was a marathon session that included a stomach-turning eight root canals at one time.

Our sources say Wayne went under the drill on Tuesday.

We're told during the eight hour procedure, Wayne had his grill worked on, several tooth implants redone, more implants added and had the few real teeth he had left repaired.

This is the critical dental surgery that kept Wayne from being shipped off to the big house last week.

The judge allowed the rapper to put his sentence for felony attempted gun possession on hold until March 2 -- enough time for Wayne to get his mouth prison-ready.

Police and firefighters had to be called to the Emerald Square Mall on Saturday when an escalator stopped short, sending several fans flying. Five people were injured, three of which were transported to the hospital.

Patrick's green #7 got caught in a pileup coming out of turn four at Daytona International Speedway, and she couldn't avoid the wreckage in front of her.

At least she got her first Daytona wreck out of the way.