Like a dance-party soundtrack stacked with classics, there’s also something comforting about working out with music you already know—the favorites that hang by like a good spotter or a pal on the next mat over. In that spirit, here’s a set of ’70s, ’80s, and ’90s hits to energize, motivate, and stoke a little nostalgia in the bargain. If you hear something you like, add it to your library.