Lil' Wayne, Serena Williams and others celebrate this week.
Music artists honoring the booty.
Plus, pics of Kim K., Zendaya, Estelle, Ice T and more.
Artists who ended feuds and recorded music together.
These movies just wouldn't have been the same without the music.
New Orleans singer makes fitness a focus with his "CuRobiks" movement and new song featuring Mystikal.