Video: John Mayer - Half Of My Heart Official Music Video

John Mayer has been MIA since ending his Douchey Magazine Interview World Tour , popping up randomly in Jay-Z documentaries and clown pants . But he's back, playing forlorn in the video for his single "Half of My Heart," which features "Charlotte" Taylor Swift on the vocals, but not in the vid. Was she too busy picking up awards and touring the country to appear in the clip? Or maybe Team Swift thought it would be a little weird seeing a classy 19-year old (who is pretty much the exact opposite of [...]