Looks like the tide went out and took surfer Kelly Slater with it. A Gatecrasher spy caught Tyrese Gibson and Cameron Diaz in full lip-lock at the hip L.A. club Xenii. "They made out right in front of me on the dance floor," says the spy.

They also came (and left) together to a pre-Oscars party thrown by Harvey Weinstein, Tamara Mellon and Tracey Edmonds, although Diaz's rep tells us the two are not dating. Another couple looking close at Xenii was the indefatigable Ray J (who has lately been keeping company with Whitney Houston) and Lil' Kim.

It was a hopping night at the club, where the guests also included Jessica and Ashlee Simpson and beautiful actress Meagan Good.