Near the start of this wildly abstract collaboration, Yoko Ono seems tocackle "Mwah-ha-ha!" amid the groans, chants, improvised poetry, and impressionistic sex noises. Humor was often part of the pioneering sound-arts he explored with John Lennon – alongside joy, fury, lust, and glossolalic craziness. And so it is here. Recorded in 2011 before Kim Gordon and Thurston Moore announced their separation, the voice-and-guitar cacophony might suggest avant-garde couples counseling to Sonic Youth fans. What's most remarkable, though, is how legible it all sounds. And maybe it should, since it distills the kind of audio radicalism these three have channeled into pop music for decades.

“Oh Sherrie”

Steve Perry's girlfriend Sherrie Swafford was actually in the studio when Perry began writing this song--his lone Top Ten hit as a solo act--with two co-writers. The trio began at midnight one night with just "Oh, Sherrie!" and "hold on, hold on." Three hours later, they had a complete song. Swafford, however, had to wait until the next day to hear it. "Sherrie actually got tired and went to bed," Perry said. She also appeared in the video, but their relationship did not hold on for long.