We were all shocked when it looked as though Katy Perry had finally tamed Hollywood's hottest bad boy, John Mayer. The singer, who famously dissed Jennifer Aniston, Jessica Simpson, Taylor Swift, plus many, many, MANY more, seemed simply smitten with the pop star. But ultimately, Katy was destined to be just another notch in his storied bedpost, and in March 2013, the duo called it quits. Before things went sour, we saw an entirely different side of John: the side of John that holds doors, dresses up in couples costumes, and accompanies his lady love on the red carpet. But is that really the side of John we like best?