They play a lot of commercials advertising all he festival live shows that they will be playing, but never say which artist the person is or at what festival/show it was at. This commercial I keep seeing has 3 artists I know and one I don't and that' the one I need to find out. It starts out with Justin Timerberlake performing "Rock your Body", goes to this Blonde Girl singing a song that I have no clue who it is, then it goes to Fitz and the Tantrums, then it goes to Sam Smith. Does anyone know who that girl is and what song that is? Here is a video of it.