What do you get when you combine sunshine + booze + beats + a crew of scantily clad Hollywood types getting their poolside swerve on? Put away your calculator—the answer is (of course) at the Hollywood Roosevelt. Clear your mid-day schedule this weekend for The Dive Club, a party for no particular reason—which everyone knows is the best kind—at the Tropicana Pool & Bar. DJ Keith 2.0 will take care of the tunage and Wasteland x LA Canvas will dole out the goodie bags. This soiree starts at noon, but show up early, because the event is free—all you've got to do is RSVP and bring that slammin' monokini.