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The Hirshhorn has added two more acts to the lineup for its May 11 live-show version of its massive Doug Aitken music-video installation, Song 1. Nico Jaar and Oneohtrix Point Never will join confirmed acts High Places and No Age for a special “After Hours” party sponsored by Wired and Pitchfork.

Oneohtrix Point Never, a synth act with drone tendencies and an Animal Collective favorite, is the brainchild of Daniel Lopatin. Nico Jaar, a Wolf + Lamb records veteran, actually prompted The Guardian to ask whether his music defies description, so I won’t try here.

That’s four acts signed on to sing “I Only Have Eyes for You” as a live substitute for Aitken’s soundtrack. More acts coming soon, apparently.