N o w - H o l l y w o o d . b l o g s p o t .c o m

Singer Justin Timberlake performed an off-the cuff riff, singing "Vote in a Box," a little spoof of his infamous, hilarious and raunchy Saturday Night Live sketch with Andy Samberg, at a Las Vegas rally for Barack Obama on Saturday.

Girlfriend Jessica Biel was at his side for "the remix." Check it out:

And just for reference, here's the original SNL skit. We had to: