I can't believe no one mentioned "The Boss", Bruce Springsteen! His voice is one that is really easily recognised.
My Top 10 (give or take)
1. Steve Perry (Journey)
2. Steven Tyler (Aerosmith)
3. Steve Winwood
4. Hmmmm, out of "Steves" now...so how about Paul McCartney. He has that rock & roll voice that always got me.
5. Lou Gramm (Foreigner)
6. Neil Young
7. Neil Finn (naturally--did you think I could leave him off??)
8. What's that guy's name from Nickleback? Chad Kroeger? (I think). Even if you're not a fan, he does have that cool r&r voice
I just noticed that all of my choices are men, so I'll add:
I also notice that all of my idols are from like, 20 years ago. Or more. ((sigh)) It's hell to grow old! ((grins))