Go back to sleep.
(A mix of songs by Tool & A Perfect Circle)

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Tool are:
# Maynard James Keenan (lead vocals)
# Adam Jones (guitar)
# Justin Chancellor (bass)
# Danny Carey (drums, percussion)

Studio Albums:
# Undertow (1993, Zoo / BMG / Volcano)
# Ænima (1996, Zoo / BMG / Volcano)
# Lateralus (2001, Volcano / Tool Dissectional)
# 10,000 Days (2006, Volcano / Tool Dissectional)
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A Perfect Circle are:
# Maynard James Keenan (lead vocals)
# Billy Howerdel (lead & rhythm guitars, vocals)
# James Iha (rhythm guitars, keyboards)
# Matt McJunkins (bass)
# Josh Freese (drums, percussion)

Studio Albums:
# Mer de Noms (2000, Virgin)
# Thirteenth Step (2003, Virgin)
# eMOTIVe (2004, Virgin)