The party is on hold for The Situation - the Jersey Shore cast member is getting treatment for prescription medication use.
Mike Sorrentino says he's voluntarily seeking to "take control" of medication he was taking to deal with exhaustion.
The 29-year-old reality star known for his steel abs made the admission on Facebook and his personal website after gossip sites reported he was in rehab.
He says he has "spent the past several weeks getting treatment for this problem and recuperating from my work and appearance schedule".
He didn't specify the medication.
An email from MTV says the network has no comment but is "looking forward" to the entire cast returning for a sixth season of the hit reality show.
A source close to the star told RadarOnline.com: "Mike is focusing on recuperation after a very long trip through Australia and getting rested up for season six.
"His friends and family know where he is, he just wants to get away from the public and be on his own for a bit to relax."
MTV had announced this week that production would begin this summer in Seaside Heights, NJ.
With The Situation's co-star Nicole 'Snooki' Polizzi expecting her first child with fiance Jionni LaValle, MTV bosses have promised the upcoming season of Jersey Shore will be a "little different".
A spokesperson said: "While things will definitely be a little different this time when they hit the boardwalk, their trademark hilarity and family dysfunction will remain the same."
- Bang! Showbiz and AP