By Leah Greenblatt
October 04, 2010 at 04:43 PM EDT

 Yoko Ono’s Plastic Ono Band gained a new, I-see-London member at the first of an all-star two-night John Lennon tribute at L.A.’s Orpheum Theater this weekend: old friend and piano scandalizer Lady Gaga.

Watch the bizarro-world Captain and Tennille perform Ono’s avant disco-skronk “The Sun Is Down” (camera focus improves around the 0:20 mark), after the jump:

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