Here are the ages of the people fronting the bands at the Post-Gazette Pavilion. To come up with the average of 45, we used one, sometimes two acts from each bill:

Ronnie James Dio (Heaven and Hell) -- 65

Steve Miller -- 64

Joe Cocker -- 64

Jimmy Buffett -- 61

Steve Winwood -- 60

Billy Gibbons (ZZ Top) -- 58

Tom Petty -- 57

Sting -- 56

Rob Halford (Judas Priest) -- 56

Geddy Lee (Rush) -- 54

Ronnie Dunn -- 54

Don Dokken (Dokken) -- 54

Elvis Costello -- 53

Kix Brooks -- 53

Vince Neil (Motley Crue) -- 47

Toby Keith -- 46

Bret Michaels (Poison) -- 45

Chris Cornell -- 43

Adam Duritz (Counting Crows) -- 43

Dave Matthews -- 41

Tim McGraw -- 41

Martina McBride -- 41

Gary LeVox (Rascal Flatts) -- 37

David Draiman (Disturbed) -- 35

Brad Paisley -- 35

Corey Taylor (Slipknot) -- 34

Chester Bennington (Linkin Park) -- 32

Brad Arnold -- 29

Adam Levine (Maroon 5) -- 28

Travis McCoy (Gym Class Heroes) -- 26

Austin Winkler (Hinder) -- 26

William Beckett (The Academy Is) -- 23

Taylor Swift -- 18

Nick Jonas (Jonas Brothers) -- 16