Lets try to guess what the demographics behind each artists are/looks like. Your guesstimated statistics can range from males to females, ages, nationalities, sexual orientation, etc.
Lady Gaga
Beyonce
Britney S.
Justin T.
USHER
Shakira
Kelly Clarkson
Kanye West
Jay-Z
Rihanna
KE$HA
Madonna
Susan Boyle
U2
Coldplay
Pick whatever artist you want (even if they're not listed).