Heard a song at Starbucks, but can't find it

It has this upbeat guitar and drum, and this lazy-sounding female voice (lyrics being very hard to figure out; I couldn't even make any of them out, no matter how hard I tried to listen).

I just also caught said upbeat guitar line, and used my voice to hum it for reference:
http://vocaroo.com/i/s0ODgXK5HqMo

Pardon my voice's quality there, but that should work. Does that part of the song sound familiar to you? Have you heard it there before? If so, who's the artist and what's that song?

Thanks!