well I heard a song at the end of the Sprint Instinct Commercial.
I couldn't really make out the words except for:
it's time to......it's time to.......
I can tell it's girl singing, sort of a punkish style
the commercial is about this women that can't decide if she loves her new Instinct phone. It shows her at the spa, chasing after a taxi because she left her phone in it, and at her house with her friend telling her "maybe your afraid to be in love"