John Mayer isn’t afraid to talk about Taylor Swift . The musicians dated briefly in 2010, and it didn’t end well. Swift penned the song “Dear John” for her 2010 album
Speak Now , and Mayer responded with “Paper Dolls” on his 2013 album
Paradise Valley . Rather than ignore his ex’s influence on pop culture, however, Mayer gave the singer-songwriter credit during an interview for MSNBC’s
7 Days of Genius special.