Lake Street Dive was formed in Boston, Massachusetts in 2004 and, according to Last.fm, is named after a street in Minneapolis. The band expanded into a quintet in 2017 and all members share writing and arrangement duties.
Their personalities, skills, and wide-ranging taste in pop, rock, R&B, and jazz have long blended together to make an impressively cohesive sound, both sophisticated and playful, combining retro influences with contemporary attitude.
Their tribute to A-Ha’s Take on Me really is rather good. Especially when the trumpet gets started.