Madonna's Grammy rehearsals to take place tonight

Madonna will rehearse her Grammys performance tonight, according to this article on Billboard.com outlining the work behind the scenes, technical tidbits and more about the preparations for tonight's Award show. "The rehearsals will continue through Saturday night with the arrival of Madonna and, if time allows, Jay Z and Beyonce, who are not expected until late Saturday night. They might be rehearsing the morning of the show." Check out more on Billboard.com.