Beyonce Slows It Down, Does Math on American Idol

It's been quite the week for Beyonce.

She sang farewell to Oprah, received a major honor at the Billboard Awards and then hit the stage with the female finalists on last night's American Idol finale.

First, the singer joined Haley, Pia and company in a fun rendition of "Crazy in Love." You can watch the ladies dance it up below, followed by Jay-Z's prettier half later returning to debut a ballad off her new album, "1+1." What did you think of both performances?

Beyonce, American Idol Finalists - Crazy in Love

Beyonce - 1+1 (American Idol)