It seems we officially have two new songs for the Equestria Girls franchise! Strange, because the titles say "Equestria Girls 5", yet there's been no announcement for a fifth movie, only the three specials in the summer. So either these songs are from the specials or there IS really a fifth on the way. Either way, I'm interested.
First one appears to show the Equestria Girls fixing up a bus and converting it into their own personal vehicle (complete with a Rainbow Dash rap).