Bikini Kill

The '90s was an explosive time for rock and these five alt-rock bands should've been a lot bigger.

The song comes from the soundtrack to the upcoming Greta Gerwig comedy 'Maggie's Plan,' which Hanna also has a role in.

The Riot Grrrl pioneers have shared the grungey, previously unheard 'Revolution Grrrl Style'-era song, "Playground."

If you find yourself in Boston on April 9, make sure to bring all your favorite Bikini Kill, Le Tigre and the Julie Ruin records.