Katy Perry and Russell Brand celebrated their one year wedding anniversary on Sunday. On Saturday, the couple  enjoyed a romantic bike ride through New York City.

Many said it wouldn't last. And let's face it, many celebrity marriages fail. Over the spring and summer the rumor was their relationship was in trouble because they were rarely spotted together. The two denied they were splitting up.

Katy recently starred in "The Smurfs" and recently performed at the Rock in Rio concert in Brazil.  Russell has several films in production including "Rock of Ages," "Drop Dead Fred" and "Lamb of God."