Taylor Swift's latest album is an open book about her love life. First she penned a song about 'Twilight' hunk Taylor Lautner. Now she's reportedly taking aim at John Mayer, which confirms rumors that the two were romantically involved in 2009 while collaborating on 'Half of My Heart,' a track from his last album. Based on lyrics from Swift's new song 'Dear John,' off her upcoming album 'Speak Now,' the ladies' man broke her heart.
Taylor Swift Writes Song About John Mayer Heartbreak?