Pharrell Williams & Robin Thicke: "Blurred Lines"
Thanks to the rapper's assistance, Thicke's wife Paula Patton finds her husband sexier than ever before.
Samuel L. Jackson & Quentin Tarantino
Award-winning Django Unchained is not the first time Samuel L. Jackson worked with famed director Quentin Tarantino. The two collaborated in other big-screen hits like Pulp Fiction, Kill Bill Vol. 2 and Inglorius Bastards.
Joe Jonas & Lil Wayne: "Just in Love"
The originally just Joe Jonas song was later remixed by Lil' Wayne. The middle Jonas brother didn't seem to mind, however, because he's a huge fan of hip-hop and Weezy.
Katy Perry & Snoop Dog: "California Girls"
In response to Jay-Z's "Empire State of Mind," Katy Perry wanted a song about California from a female's perspective. She searched for an original West Coast rapper to be featured on the track and after extensive research (she used Wikipedia), she selected Snoop Dogg.
Aerosmith & Carrie Underwood: "Can’t Stop Loving You"
Steven Tyler wanted to sing the song with emotional drawl, but the result came out a bit too country for the band. So, the Aerosmith frontman contacted Carrie Underwood and according to him, "the rest is history".
Kanye West & Jean Touitou
The designer admitted in an interview with Style.com that the rapper was not always easy to work with, but the 2-year collaboration resulted in a 7 piece collection that sold out instantly when released online.