UMG GRAMMY-VIEWING SHINDIG: Thrown at the Brentwood manse of famous expat Lucian Grainge, right down the block from O.J.'s old house, with the East Coast feed, natch. Hanging out and rubbing elbows were, among others (and in no particular order): Zach Horowitz, Jimmy Iovine, Monte Lipman, Avery Lipman, Max Hole, David Joseph, Barry Weiss, Berry Gordy, Irving and Shelli Azoff, Daniel Ek, Eddie Cue, David Foster, David Massey, Ellen Lavinthal, Gene Simmons and Shannon Tweed, Gee Roberson, Evan Lamberg, Guy Oseary, Ian Montone, Jason Flom, Jessie J., Ida Maria, Jared Leto, Maroon 5, Melanie Fiona, Chazz Palminteri, Michelle Trachtenberg, Peter LoFrumento, Maria Ho, Roy Trakin, Lana Del Rey, Tom Whalley, Steve Moir, Slim Williams, Vernon Brown, Ludacris, Don Passman, Jay Landers, Robbie Williams, Jonathan and Melissa Wolfson, Sujata Murthy, Laura Swanson, Steve Rifkind, Mo Ostin, Michael Ostin, Paul Rosenberg, Peter Rice, Diane Warren, David Cohn, Glenn Frey, Scooter Braun, Bobby Kotick, Mark Wright, Bruce Resnikoff and Michael Rapino. Sushi and hot dogs by Katsuya and Pink’s. (2/12p)