Credit: Courtesy Stephen Brown

American Idol's first-season runner-up Justin Guarini is a married man!

The Idol alum, 30, swapped vows with high school classmate Reina Capodici, 27, Saturday in his hometown of Doylestown, Penn., has confirmed.

"The wedding went off without a hitch,"Guarini's rep tells Us.

The nuptials, which took place at a private estate along the Delaware River, featured musical arrangements by the Vitamin String Quartet and included a reading by Capodici's 4-year-old daughter, Lola. Guarini and his new bride wrote their own vows for the "spiritual" service.

A female minister from the Universal Church presided over the evening ceremony.

Guarini and Capodici, who make their home in Pennsylvania, decided to get married last December when Guarini was in Florida at Disney's EPCOT Center filming his "hosting clips" for the "American Idol Experience" ride.