Help with a cryptic clue (music)

Factual Questions
1

I’m stuck on a music quiz.

Clues are cryptic, I have one clue I can’t get

“Matching group of stones”

Any clever people out there

Other answers have ranged from Dolly Parton to Linkin Park

2

The Rolling Stones would be too obvious?
Petra?

3

too obvious

Have just double checked … nope still wrong

4

Roxette? (rock set)

5

:smiley: :smiley: WOOHOO :smiley: :smiley:

Big Kiss from me to you
I can rest easy now, thats been bugging me so bad

Thank You Thank You Thank You Thank You Thank You Thank You