Wanna feel old? Here is a fairly recent photo showing (l. to r.) Fabian, Frankie Avalon, Chubby Checker and Bobby Rydell.
Take a good look at the photo. Besides being former teen idols, can you guess what they all now have in common? (No, it's not Geritol... well, it might be...)
The answer: They're all wearing
toupees! 
Damn... I'm really feeling my years now...

Signor V.