Tank!

"Tank!" is an instrumental by The Seatbelts and the opening theme of the 1998 anime television series Cowboy Bebop (カウボーイビバップ). Yoko Kanno composed it for the series. The anime was produced by Sunrise and Bones, and the track is widely described as a big-band jazz and jazz fusion piece.

The song first appeared on Cowboy Bebop Original Soundtrack 1, released on 1998-05-21 by Victor Entertainment, where it opens the album. It was later reused on multiple Cowboy Bebop soundtrack releases and franchise compilations.