The music of FLCL was written and performed by The Pillows, which has generated mass success and appreciation since the series' release abroad. The ending theme is The Pillows' "Ride on Shooting Star". The remaining music was written by Shinkichi Mitsumune. Two soundtrack CDs — Addict and King of Pirates — and a one-CD "best-of" compilation (FLCL No. 3) were released in Japan and later in America.