Best Front Man of a Pop/Rock Group?

Jan 2018
Geddy Lee - singing, playing the bass/keyboards and foot pedals - all at the same time. Gotta go with the best live show I have ever seen - Rush.
Jan 2015
Rupert's Land ;)
Freddie Mercury and Angus Young spring to mind. Any interesting others?
Did You mean Bon Scott?

What's your criteria?
Charismatic showman? Powerful vocals?

To add a few progressive bands

Genesis - Peter Gabriel
Uriah Heep - David Byron
Deep Purple - Ian Gillian
Renaissance - Annie Haslam
King Crimson - John Wetton, Greg Lake