FRIDAY FROLIC - UPDATE - ANSWER AT BOTTOM OF POST

What do the following people have in common...

Tommy Lee
Tim Roth
Britney Spears
Drew Careey
Gail Porter
Davina McCall
Billy Connolly
Steve Tyler
Liv Tyler
Meg Matthews
Christina Aguilera
Janet Jackson

Feel free to leave guesses in the comments section.

Answer on Monday


UPDATE

The answer is.....

They all have a pierced nipple.