photo courtesy of PR Photos/www.prphotos.com

John Mayer was invited by Rob Thomas to play guitar on the song "Streetcorner Symphony" for his new album.  Check out the video below.  John Mayer is making those funny faces again like he's moaning, but the video is pretty cool.  I love Rob Thomas - he's awesome!

Isn't it interesting how John Mayer can look pretty hot when he's all done up for an event like the above photo of him at the  VH1 Save The Music 10th Anniversary Gala in September?  I guess it's the artist in him that make him make those facial expressions though eh?
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