There is no way I would have ever figured out that one!
Gotta say, some of these are a bit of a stretch – but kudos to you for deciphering this one!
Cheers.
Friendly Fires

Michael Jackson

The Godfathers (Alternative Rock Band)

Possibly Flaming Lips?
The Corrs

That of course was the first thing I thought but I couldn’t get Lips out of that. Friendly Fire seems more likely and there have been some obscure connections.
“Michael Jackson” looks just like Jack Nicholson.
Edit: Now I get it (that is Jack).

Soul Asylum “Sole Asylum”
I thought the might be the Bluejays, but on closer inspection they are probably green. Could have been one of the Pointer sisters.
The Script
chart topping Irish band

Simply red (in the rainbow)
Doh!
Chris Brown (rainbow again)
Blur

Sheryl Crow
[SHALE - “L” - CROW]

Really? A bit disappointing if correct. Congrats anyway.
Cheers.
PS
Maybe its a deep south pronunciation of Cheryl. 
Green Ocean (in the rainbow - last one, I promise!)
Thank you!! That one was like an itch you can’t scratch!