I'm busy "working", running a radio board right now. Obviously it's very absorbing.

Things I learned from Google:

Pineapples = not a band
Bubblegum band = not a band
3 Non Blondes = British TV Show
4 Non Blondes = early '90s group


Here's the list so far...

61 or 63 for sure:

Guns N Roses
Nine Inch Nails
Smashing Pumpkins
Radiohead
Red Hot Chili Peppers
Matchbox 20
Eagles
Alice in Chains
Led Zepplin
White Zombie
Gorillaz
Scissor Sisters
Rolling Stones
U2
50 Cent
Crowded House
Sex Pistols
Pixies
Monkees
Whitesnake
Jets
Ratt
Black Flag
Eels
Blind Melon
Blur
Police
Madonna
Counting Crows/Black Crowes
Talking Heads
Iron Maiden
Seal
Dead Kennedys
Garbage
Cars
Hole
Cowboy Junkies
Phish
Cranberries
Eminem
Queen
Doors
Postal Service
Great White
Yellowman
Green Day
Beach Boys
Prince
Vines
Lemonheads
Korn
Jewel
Carpenters/Men at Work
Cypress Hill
King Kong
Deep Purple
Kiss
4 Non Blondes
Spoon
Bee Gees
Cake

Five question marks (at least to me):
'Til Tuesday
Blondie
Dino
Bush
Twisted Sister

Not Convinced:
B-52s
T.A.T.U.