Justin Bieber's Soulja Boy Duet: "Rich Girls" Rule!

Cha-ching!
Justin Bieber's new duet with Soulja Boy called "Rich Girls" has just leaked, and it sounds so money.
Which should be no surprise, since JBiebz totally hearts R&B/rap collaborations, like having Ludacris appear on "Baby" or doing "Eenie Meanie" with Sean Kingston.
The new tune is — you guessed it — about a wealthy young lady that Justin likes. Um, she's rich and she gets to go out with him? No fair!
Take a listen and let us know what YOU think about it!