Justin Timberlake sings "Vote in a Box" for Barack Obama!

Justin Timberlake and his girlfriend, actress Jessica Biel did some TV spots encouraging people to vote early for Barack Obama.

But funnier than Justin's impromptu "Vote in a Box" song above is Justin and Jessica's improvised voice-over below.

Love that flirty Sarah Palin-esque wink, Justin!

For more information on how to put your "Vote in a Box," click here.

Hey, how come no stars are doing any "Vote for John McCain" videos? Did we miss it?

Anyone seen any? If so, let us know, OK?