The singer - who was celebrating his birthday last month at his £2million Californian mansion - was faced with a police raid, and responded by kicking out all but six men, turning down the music and heading into the pool with 40 bikini-clad babes.
He told The Sun: "It was pretty fly, we were having a lot of fun. Then all of a sudden a helicopter starts circling my house. I'm like, 'What the f***?'
"An hour later 50 police officers come barging in. Because of noize complaints. But I don't really have any neighbours close by. I was like, 'Is this really necessary? This is embarrassing."
The beautiful party-goers - who were chosen for the guestlist after applying to promoters - weren't deterred, with Jason and The Game kicking out most of the men and enjoying a night swim with the girls.
