O.S.T. is the third album by the People Under the Stairs. The album was again produced in Thes One's home entirely by the duo, and it was finally released in June 2002 on Om Records. The album produced three singles, including "Acid Raindrops", one of the group's most successful songs and a constant staple at live shows.

Tracklist:

A1 Intro 4:15

A2 Jappy Jap 3:47

A3 The Suite For Beaver Part 1 4:26

A4 The Suite For Beaver Part 2 4:06

B5 O.S.T. 4:36

B6 Empty Bottles Of Water 3:29

B7 The Outrage 4:32

B8 The Hang Loose 4:02

B9 The Double K Show 3:24

C10 Tales Of Kidd Drunkadelic 3:03

C11 Keepin It Live 4:36

C12 The Dig 3:43

C13 The Heat 0:58

C14 Montego Slay 4:13

D15 The L.A. Song 4:27

D16 8 Is Enuff 3:10

D17 Acid Raindrops 4:56

D18 The Joyride 4:06

D19 The Breakdown 5:00