I saw this awhile back there are a couple of others, some with guitars like a flash mob. If I can find the one with guitars, I'll post it.
2013 Jeff Medlin '37 Hauser 640mm sp
2006 Michele Della Giustina Concert 10 string 650mm ce
2005 Jose Ramirez 4E 650mm ce
2005 Manuel Rodriguez Model C3F 650mm sp
2003 Manuel Rodriguez Model D 650mm ce