17 Kasım 2009'da piyasaya çıkan dördüncü John Mayer albümü.
1. "Heartbreak Warfare"
2. "All We Ever Do Is Say Goodbye"
3. "Half of My Heart" (with Taylor Swift)
4. "Who Says"
5. "Perfectly Lonely"
6. "Assassin"
7. "Crossroads"
8. "War of My Life"
9. "Edge of Desire"
10. "Do You Know Me"
11. "Friends, Lovers or Nothing"
