Yoko Ono and Lady Gaga Duet in Los Angeles

Lady Gaga and Yoko Ono perform at the "We Are Plastic Ono Band" show at the Orpheum Theater on Oct. 2, 2010 in Los Angeles. (Kevin Winter/Getty Images)

NEW YORK (CBS) Pop star Lady Gaga hit the stage with Yoko Ono on Saturday night during the "We Are Plastic Ono Band" show in Los Angles.

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While sporting a sheer, shimmery jumpsuit with a studded headpiece, the 24-year-old "Poker Face" singer sang two duets with Ono. The two ended their performance lying side-by-side on top of a grand piano.

Gaga thanked Ono for "being so brilliant and such an inspiration to so many women," reports the BBC.

The two-night event, which was held at the Orpheum Theater, also paid tribute to Ono's late husband, John Lennon, who would have turned 70 this coming Saturday.

He and Ono found the Plastic Ono Band in 1969.  Their son, Sean Lennon, is now the group's musical director.

In addition to Gaga, other guest performers that attended the show included Iggy Pop, Jane's Addiction singer Perry Farrell, Kim Gordon and Thurston Moore of Sonic Youth, Wu Tang Clan's RZA, Eric Clapton, actors Carrie Fisher, Joseph Gordon-Levitt and Vincent Gallo.

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