Guess Who?

Which infamous record producer who’s worked with — and bedded — the many of today's hottest young singing talents threw a temper tantrum in front of a Sin City club last weekend after discovering he wasn’t a household name to the bouncer?

An eyewitness tells OK!, “He was turned away at the door because he wasn't on the list, and they didn't know who he was.” A hard pill to swallow for sure, but that didn’t stop the enraged egocentric individual from unleashing his own bitter verses.

And when his head deflated, it was a case of Bourne Identity — as in amnesia. “He threw a big fit and started yelling, causing security to ask him to leave the premises,” the source says. “When fans came up to him, he said he wasn’t who he is as he didn't want to further embarrass himself.” Think you know who it is?