Looking for name of a song

Does anyone know the name or artist of the song that was playing in the background in the initial scene at the Battle of the Bands?
It was just background music that the characters were talking over (Twyla and Hank walk into the room where a band is playing on stage, and she says, "Wow, this is a whole lot of people!"). Sounds like maybe a British vocalist, but I can't make out the lyrics.