John Mayer headed out to the streets of NYC last night after having dinner with friends at the Waverly Inn. Looking at him all bundled up in his scarf with that smug smile on his face, we can't help but think about how he's changed in our eyes over the the past year. We're not sure if it's the celebrity girlfriends, or the way his style seems to have cleaned up, but this singer has grown on us quite a bit. Of course we can't forget the haircut, which many of you attribute to his sudden surge of hotness. It's the end of the year so you know what that means! Stay tuned for all our year end coverage and fun lists. Looks like John is making it on the most improved in 2007 list.