The Situation was back to his normal routine yesterday in New Jersey -- driving around in his Lamborghini, hitting up the car wash, the gym, and a vitamin store.

As TMZ first reported, The Situation checked out of rehab earlier this week after spending a few weeks at Cirque Lodge rehab center in Utah, where he was receiving treatment for substance abuse.

We've been told producers plan on bringing in new cast members for the next season of "Jersey Shore," so they can slowly phase out Sitch and Snooki. 

The show is set to begin filming this summer.

Tila Tequila is officially out of rehab ... after 30 days of intense counseling for her substance abuse and psychological issues ... TMZ has learned.

A rep for Tila tells TMZ, the reality star "has successfully completed her program in rehab and has safely made her way back home. She has fully recovered, and is currently spending time with her closest family and friends."

TMZ broke the story ... Tila agreed to enter rehab following a suicide scare in her L.A. home last month.

Tila's rep adds, "She is the healthiest she's ever been and wants to thank all of her fans for their undying support while she was battling through some hard times."

The Situation has CHECKED OUT of the Cirque Lodge rehab center in Utah ... where he was receiving treatment for substance abuse ... TMZ has learned.

TMZ broke the story ... Mike Sorrentino checked in to the famous treatment center several weeks ago ... claiming he wanted to "get control of a prescription medication problem I had due to exhaustion."

Sitch was spotted out moments ago at a nearby airport ... and even took a photo with a fan who happened to be on his flight.

Now comes the biggest test of all ... when Sitch re-enters the danger zone to tape the next season of "Jersey Shore."

Good luck ...

Former Crazy Town singer and "Celebrity Rehab" star Shifty Shellshock is now conscious again -- after falling into a coma last week, TMZ has learned.

Sources tell TMZ, Shifty had been on breathing tubes since Thursday -- when he originally fell into a coma -- but was successfully taken off them last night.

We're told Shifty is now responsive -- even speaking sporadically -- but he's still not fully aware of his surroundings. He is still in the ICU.

As we previously reported, it's unclear what put the singer into a coma -- but several people close to him are convinced drugs were to blame.

We’re told doctors believe he will make a full recovery.

While former "Crazy Town" singer Shifty Shellshock lay hospitalized in a coma ... his baby mama and his family were fighting in the ICU, according to the woman.

Jasmine Lennard, Shifty's girlfriend and mother of their 2-year-old son ... claims Shifty's family never said a word about him being in the hospital -- and she had no idea until friends told her yesterday.

As TMZ first reported, the former "Celebrity Rehab" star has been unresponsive in intensive care since last week ... and people close to him think drugs are to blame.

Jasmine tells TMZ she rushed to the L.A. area hospital Monday afternoon, but when she got to the ICU ... Shifty's sister grabbed her arm and other family members cursed at her. According to Jasmine things got so heated "security was eventually called and we were all separated."

Jasmine says she got to Shifty's room, but was never able to see him. She's furious about the family keeping her in the dark, and claims they are "blaming me for leaving him during Christmas for this relapse."

Shifty's mother and sister haven't responded to our phone calls.

Jasmine says she and Shifty had reunited, and she fully intends to go back to the hospital.

Former "Celebrity Rehab" star Shifty Shellshock is currently in a coma in an L.A. hospital -- TMZ has learned.

According to sources, the former Crazy Town singer has been in the ICU since last Thursday and is completely unresponsive. It's unclear what put him there -- but people close to him believe it was drug-related.

Shifty is scheduled to appear in court this week for a pre-trial hearing -- after his February coke arrest. We're told he was extremely anxious about the possibility of going to jail.

Legendary hip hop producer Scott Storch is being sued by an aspiring singer ... who claims she paid Storch a ton of money to produce her album ... but he was too drugged out to get the job done.

The woman on the attack is Treena Ruberg ... who claims Storch -- who's worked with superstars like Dr. Dre, Beyonce, Justin Timberlake and more -- agreed to produce 6 songs for Treena in exchange for $45,000 back in October 2011 ... $30k of which she paid up front.

According to Treena's lawsuit, filed in L.A. County Superior Court, Storch acknowledged he had a previous drug problem ... but insisted he was now "cured of his past problem" and would be able to deliver the tracks by the end of November.

But Treena says Storch straight up lied ... claiming he "continued to have a drug addiction and other personal problems which rendered him incapable of producing any recordings."

Now, Treena says she wants her $30k back ... plus an additional $70k for all of the out-of-pocket expenses she incurred during the process ... including plane flights, studio time and having to hire another producer.

Calls to Storch's rep have not been returned.

The Situation is in rehab not just for prescription drugs, but also for alcohol, TMZ has learned, and this turn of events could pose big problems for next season's "Jersey Shore."

Sources involved in the situation (sorry) tell us ... the Situation went through detox at a facility before he checked into Cirque Lodge in Utah, and the detox involved alcohol.

Our sources also say The Sitch is "very open" with other patients at Cirque about his drinking.  He discusses how his club appearances escalated his alcohol use.

Now here's the problem for "Jersey Shore."  The Situation and alcohol have been tied at the hip for 5 seasons.  If the show allows The Situation to fall off the wagon to make the show better in season 6, they will look like crass enablers.  If they don't let him drink, there's a good chance they will lose viewers.

Stay tuned.

The Situation is undergoing rehab at the famous Cirque Lodge in Utah for prescription meds, TMZ has learned.

Several sources have told us The Situation is at Cirque for other substance abuse problems ... but as of now, we can only confirm prescription meds.

Our sources say The Situation is walking around Cirque, telling people he's gained weight -- and has made specific diet requests from the chef at the facility, hoping to get back into shape for the 6th Season of "Jersey Shore."

And just to make sure he gets his way -- one source tells us, Sitch is making damn sure everyone remembers how wealthy and famous he is.

We're told this is not the first time The Situation has undergone treatment for substance abuse.


1:50 PM PST -- Situation just released a statement ... claiming he has "voluntarily taken steps to get control of a prescription medication problem I had due to exhaustion."

He continues, "I have spent the past several weeks getting treatment for this problem and recuperating from my work and appearance schedule. I appreciate my fans support and love you guys."

Multiple sources close to The Situation tell TMZ ... the MTV star's hard-partying ways were worse than ever during the taping of the most recent season of "Jersey Shore" ... and the signs were obvious during the episode when the gang went camping.

TMZ broke the story ... Sitch recently checked into rehab for substance abuse after realizing his recreational habits had spun out of control.

Now, sources close to Sitch tell us ... the reality star had been showing signs of substance abuse for a while ... but "he was getting worse" as the season went on.

We're told ... several people noticed he was "acting paranoid" on the set ... and the unusual behavior was evident in certain Season 5 episodes that recently aired on MTV. During the ep when the gang goes camping, Sitch can be seen acting jittery, sweating profusely and just plain acting bizarre.

Sources say ... cast and crew members on "Jersey Shore" are happy he's getting help ... and hope that he will be healthy enough to join them for the recently announced Season 6.

"The Situation" is in rehab for substance abuse ... TMZ has learned.

Sources tell TMZ the "Jersey Shore" star -- aka Mike Sorrentino -- has checked into an inpatient treatment program. 

A rep for the Situation just contacted TMZ to say they are not confirming that Mike is in rehab ... just that he "has spent the past several weeks at an undisclosed location for much needed rest and recuperation after his extensive production and appearance schedule."

Like most of the 'JS' crew ... Sorrentino's been on a non-stop party train since the show debuted on MTV 2 years ago -- drinking and making paid appearances at nightclubs all over the world.

Sitch makes anywhere from 15K ... up to a whopping 50k per nightclub appearance.

MTV just announced "Jersey Shore" is returning for a 6th season ... which is scheduled to start shooting this summer.


1:10 PM PT -- The Situation is currently undergoing treatment for prescription pills at the famous Cirque Lodge in Utah.