The surprise appearance, which the band announced just the day before, was accessible only to 100 fans, at the Hollywood community arts space Junior High. Hundreds lined up for a chance to see the sisters Haim in this intimate setting.
The band played a new song, “Night So Long,” which they recently debuted in London; this was the second time Haim performed the song live.
Haim also took the opportunity to throw down a cover of the 1997 Shania Twain hit “Man! I Feel Like a Woman.”
Watch footage below.
This article was originally published on SPIN.