We Are The World
I WIll Always Love You
My Heart Will Go On
Tik Tok
I Gotta Feeling
Blurred Lines
Poker Face
Rolling In The Deep
Call Me Maybe
Bad Romance
Firework
Happy
Uptown Funk
(I think these are in descending order, though I don't know for some)
BR has sold about 12.5 million worldwide. Amazing still, but you really need to stop peddling this RIAA-inflated figure unless we're going to count track-equivalent-streams in every song's total.