Seriously? I guess this is what happens when you need to try and grab the last few minutes of your finished 'rockstar' career, or maybe just some extra drama-attention with the paparazzi. Regarding the two songs, yes, they have a similar if not the same chord progression for the eight bars of the hook, but that means nothing. Chord progressions are way too common to copyright, otherwise every wannabe musician would be crying in court about how a multi-platinum selling artist stole their beloved tune.  Really Joe, you were going to be remembered as a great guitarist, fantastic teacher, and exceptional performer, all of which are worthy of respect and admiration among your fans and the music industry. Now, you're just a whiner standing in the shadows stabbing at an artist in a lame attempt to keep yourself afloat so that maybe next time you are nominated for a Grammy award people might actually recognize your name.