Michael Phelps secretly married Nicole Johnson

Image via Instagram

From gold medals to gold wedding bands.

It seems Michael Phelps has been keeping a secret.

The Olympic swimming champ from Baltimore reportedly married longtime girlfriend Nicole Johnson on June 13th.

The former Miss California gave birth to their son, Boomer, in May.

The Arizona Republic posted a copy of the couple’s marriage license that shows they said their vows in Paradise Valley, Arizona.

The marriage certificate says that Peter Carlisle performed the ceremony. Carlisle is the Phelps’ agent and very good friend.

Johnson recently uploaded a photo to Instagram showing several models wearing wedding dresses, hinting that a formal wedding could still take place following their June civil ceremony.