Listen to John Mayer's New Single, Heartbreak Warfare

by POPSUGAR Celebrity 9

John Mayer's been keeping himself busy, hitting the red carpet last week and releasing his second single from his upcoming album Battle Studies yesterday. You were loving the first track "Who Says" which was witty and fun but his latest, "Heartbreak Warfare" is all about his emotions. We got our first taste of it back in March on the Mayercraft Carrier, and most of you were into the soulful song. So tell us, which John style do you prefer — serious or playful?