SIDE & SOLO PROJECTS
Rush, and it's members, have been in several side and solo projects. Geddy Lee did guest starred on the albums of other artists as well as making his own solo album. Alex Lifeson guest starred with some other bands, plus he made his own solo band, "Victor." Neil Peart guest starred with some other bands, made an instructional video, and he also made a tribute to the drummer Buddy Rich.
Rush (as a band)
Max Webster: Universal Juveniles (1980) (Side Project)
Geddy Lee
Wireless: No Static (1979) (Side Project)
Bob and Doug McKenzie: The Great White North (1981) (Side Project)
Boys Brigade: Boys Brigade (1983) (Side Project)
Marie Lynn Hammond: Vignettes (1983) (Side Project)
Northern Lights: We Are the World (1985) (Side Project)
Euphoria: Euphoria (1999) (Side Project)
I Mother Earth: Blue Green Orange (1999) (Side Project)
Geddy Lee: My Favorite Headache (2000) (Solo Project)
The Big Dirty Band: I Fought The Law (2006) (Side Project)
Alex Lifeson
Platinum Blonde: Alien Shores (1985) (Side Project)
Canadian Guitar Summit: "Beyond Borders" (1987) (Side Project)
Greenway: Serious Business (1988) (Side Project)
Clean Slate: Clean Slate (1988) (Side Project)
The Big Picture: Dream on the Horizon: A Tribute to the Olympic Spirit (1988) (Side Project)
Rock-Aid Armenia: "Smoke on the Water" (1990) (Side Project)
Larry Gowan: Lost Brotherhood (1990) (Side Project)
Tom Cochrane: Ragged Ass Road (1994) (Side Project)
I Mother Earth: Scenery and Fish (1996) (Side Project)
Victor: Victor (1996) (Solo Project)
Various Artists: Merry Axemas (1997) (Side Project)
The Big Dirty Band: I Fought The Law (2006) (Side Project)
Neil Peart
Jeff Berlin: Champion (1985) (Side Project)
Neil Peart: "Pieces of Eight" (single) (1987) (Solo Project)
Rheostatics: Whale Music (1992) (Side Project)
1989 Buddy Rich Memorial Scholarship Concert (Video 3) (1991) (Solo Project)
1989 Buddy Rich Memorial Scholarship Concert (Video 4) (1991) (Solo Project)
Burning for Buddy (1994) (Solo Project)
The Making Of Burning For Buddy (Part 1) (1994) (Solo Project)
Burning for Buddy II (1996) (Solo Project)
The Making Of Burning For Buddy (Part 3) (1996) (Solo Project)
Neil Peart: A Work in Progress (2 video set) (1996) (Solo Project)
SOUNDTRACKS

WHATEVER (Soundtrack)
Song: Tom Sawyer
Label: MEDICINE (courtesy of MERCURY)
Released: June 23, 1998

SMALL SOLDIERS (Soundtrack)
Song: Tom Sawyer (DJ Z-Trip remix)
Label: UNI/DREAM WORKS RECORDS (courtesy of MERCURY)
Released: July 7, 1998

THE WATERBOY (Soundtrack)
Song: Tom Sawyer
Label: PGD/HOLLYWOOD (courtesy of MERCURY)
Released: November 3, 1998

SOUTH PARK: BIGGER, LONGER, AND UNCUT (Soundtrack)
Song: 'O' Canada (Geddy Lee and Alex Lifeson)
Label: WEA/ATLANTIC
Released: June 22, 1999

TRAILER PARK BOYS: THE MOVIE (Soundtrack)
Song: I Fought The Law (The Big Dirty Band featuring Geddy Lee and Alex Lifeson)
Song: The Spirit Of Radio
Label: ANTHEM
Released: October 5, 2006

HALLOWEEN (Soundtrack)
Song: Tom Sawyer
Label: HIP-O RECORDS
Released: August 21, 2007

FANBOYS (Soundtrack)
Song: Limelight
Song: Tom Sawyer
Released: 2009

I LOVE YOU, MAN (Soundtrack)
Song: Tom Sawyer
Song: Limelight
Song: Limelight (performed by Paul Rudd and Jason Segel)
Label: Lakeshore Records
Released: March 17, 2009