When Katy Perry dropped her new single “Chained to the Rhythm,” one of the first places she promoted it was on Musical.ly, a three-year-old service you may not know if you’re of legal drinking age.

Lisa Prank is releasing her sophomore studio album, Perfect Love Song, in a few weeks, the follow-up to the Seattle artist’s very charming 2016 debut Adult Teen. She’s shared one song, “Rodeo,” from ...