Patti Scialfa has an Instagram feed and yesterday she stirred all sorts of opinions on a video that she posted. The video was of Bruce Springsteen in the studio conducting a bunch of string musicians. Patti wrote on the video: "Mariachi real de Mexico @ThrillHill Rehearsal/Recording for The Lost Charro #newmusic #mariachi" No one really knows what this is for, it could be Springsteen working on his own new album or maybe he is doing someone a favor and recording a song or two. Either way, it is great to see Bruce back in the studio only mere days after he ended his 2014 tour.