New Video: Brit & Alex, 'Let It Go'

"Let It Go," the debut single from (identical) sister act Brit & Alex isn't about saving Darfur, solving the social security crisis or putting an end to global warming. But then again, they never claimed to be M.I.A.

Instead, this energetic standout (you've heard the song if you've seen Step Up 2: The Streets) from the duo's upcoming album allows the reformed child actors -- known for those ubiquitous John Frieda hair commercials -- to excel at what they do best: sheer, shiny, well-coifed entertainment. So stop robotically refreshing CNN's homepage, and instead check out two Hilton lookalikes who come stocked with an endless supply of costume changes, hair extensions and street choreography sexy enough to make even Christina Aguilera blush.