It looked like Oscar night in Los Angeles yesterday as the stars showed up in bunches at the wold premiere of “This Is It”.

Will Smith, Jennifer Lopez, Katy Perry, Adam Lambert, Paris Hilton and Paula Abdul are just some of the stars who turned out.

The film features footage of Michael Jackson rehearsing what would have been his comeback concerts in London just before his death this summer.

Michael’s brothers Jermaine, Marlon and Tito also walked the red carpet.

“It’s great to be here on the carpet for a premiere, but this is the saddest premiere I’ve ever been to,” Tito said.

Paula Abdul reminisced about choreographing Michael and the Jackson 5 on their Victory Tour in the early ’80s.

“Michael was one of the most dedicated people I’ve ever worked with in my life. There’s no one like him, there will never be anyone like him.”

This Is It opens today and will be in theatres for a two-week run.

Michael Jackson's "This Is It" Premiere