Watch John Legend serenade his dogs as they get married -- shocking long-time love Chrissy Teigen -- for a very good cause.

When you donate, through, to the Show Me Campaign -- which will help rebuild the auditorium at South High School in Springfield, OH -- you will be entered to win a private show by the "All of Me" singer -- for your own wedding, or any other special event you have planned.

There are a string of other celebrity-inspired prizes to be had through Omaze: want to hang with Iron Man at the Avengers: Age of Ultron premiere? Donate to Julia's House. And a contribution to New York Collaborates for Autism and Night of Too Many Stars might get you drawn in to an episode of The Simpsons.

Check out for more amazing opportunities.