Robbie, a local rock star turned wedding singer, is dumped on the day of his wedding. Meanwhile, waitress Julia finally sets a wedding date with her fiancée Glenn. When Julia and Robbie meet and hit it off, they find that things are more complicated than anybody thought.

High school hotshot Zach Siler is the envy of his peers. But his popularity declines sharply when his cheerleader girlfriend, Taylor, leaves him for sleazy reality-television star Brock Hudson. Desperate to revive his fading reputation, Siler agrees to a seemingly impossible challenge. He has six weeks to gain the trust of nerdy outcast Laney Boggs -- and help her to become the school's next prom queen.