3rd Secret, the new band featuring former Nirvana bassist Krist Novoselic and Soundgarden members Kim Thayil and Matt Cameron (also of Pearl Jam), have unveiled their first live performance. In keeping with the group’s band name, the performance of the song “I Choose Me” was secretly filmed last month at the Museum of Pop Culture in Seattle. After keeping things tight-lipped, 3rd Secret revealed their existence and released their self-titled first album all in one day last week. In addition to the aforementioned grunge legends, the band is rounded out by guitarist Bubba Dupree (of the ’80s hardcore band Void) and singers Jillian Raye (of Novoselic’s group Giants in the Trees) and Jennifer Johnson. While the 11-song LP has been available to stream since the band went public, the performance...