Match the singer with the band. Just fixed it. Try it now.

Hint: for one of the bands there are two singers, but every other band has one singer and every singer, 0ne band.

Steven Tyler
Bon Scott
David Lee Roth
Robert Plant
Chris Robinson
Mick Jagger
Ian Gillan
Zach de La Rocha
Scott Weiland
Brian Johnson
Chris Cornell
Sammy Hagar
Maynard James Keenan
Lajon Witherspoon
Layne Staley
Roger Daltrey

The Rolling Stones
The Who
Tool
Aerosmith
Led Zeppelin
Black Sabbath
Van Halen
Sevendust
Rage Against The Machine
Montrose
Alice In Chains
Deep Purple
AC/DC
The Black Crowes
Stone Temple Pilots
Soundgarden

Tyler - A-Smith

Bon Scott - AC/DC

DL Roth - Van Halen

Plant - Zep

Chris Robinson - Black Crowes

Jagger - Rolling Bones

Gillan - Purple (didn't he also do Sabbath for a while?)

Zach - Rage

Weiland - STP

Johnson - AC/DC

Cornell - should be Soundgarden, not on your list

Hagar - Montrose, Van Hagar

Maynard - Tool

Lajon Witherspoon - Sevendust

Layne Staley - AIC

Daltrey - The Who

When I say Van Halen, I mean the DLR led band not the Hagar-ized version. Hagar went to Montrose. It was a little trick. I did add Soundgarden. I got confused when I wrote it.

Good quiz. I still gotcha, though, cuz Gillan sang for Purple AND the Sabs, and you didn't have a singer listed for Sabbath. Unless you MEANT Gillan for Sabbath, but then you wouldn't have had a Purple vox.

It was hard to come off with this on the fly.

Steven Tyler - Aerosmith
Bon Scott - AC/DC
David Lee Roth - Van Halen
Robert Plant - Led Zeppelin
Chris Robinson - The Black Crowes
Mick Jagger - Rolling Stones
Ian Gillan - Deep Purple
Zach de La Rocha - Rafe Against The Machine
Scott Weiland - Stone Temple Pilots
Brian Johnson - AC/DC
Chris Cornell - Soundgarden
Sammy Hagar - Van Halen
Maynard James Keenan - Tool
Lajon Witherspoon - Sevendust
Layne Staley - Montrose
Roger Daltrey - The Who

Lajon / Layne are guesses, I know got the rest.

Sammy Hagar did montrose. Layne did Alice In Chains.