Jason Derulo checked into Rehab this weekend -- the legendary Las Vegas pool party at the Hard Rock -- where the singer had to follow a 12-step program of his own:
Step 1 -- Admit you are powerless over ass. Step 2 -- Embrace and enjoy. Steps 3 through 12 -- repeat Step 2.
Get jazzy on that.
Thanks to our friends at SpyOnVegas.com for the pics.
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