Britney Spears looked like a sexy, futuristic librarian in the video for will.i.am's 'Scream and Shout,' which debuted on tonight's (Nov. 28) episode of 'X Factor.'

It's the sexy Brit Brit of yore, in her pencil skirt and big bouffant.

Will wears lots of gold accessories, like a cap with a gold plate that reads "King" on his head, which also becomes a disco ball. It's his song, but it's Brit that we love looking at in this spacy, from-the-future video.