It's just another example of world's colliding.  Taylor Swift is partnering up with rapper B.o.B for a track on his next album.  This isn't the first time that Swift and B.o.B have teamed up.  The two shared the stage during Swift's Speak Now: World Tour and performed B.o.B's hit "Airplanes."   This new track is called "Both Of Us" and the album, "Strange Clouds."  Here is a little sample of the .......two performing together in Dallas.....Keep in mind, this isn't the best audio quality!