Patrick Stump visits the Best Buy Musical Instruments Theatre on October 23, 2011 in Tampa, Florida. Credit: Radko Keleman/

Fall Out Boy's Patrick Stump is now a married man!

The 28-year-old singer married girlfriend Elisa Yao in Chicago on Saturday, his rep confirms exclusively to Us Weekly.

A source tells Us that the rocker's bandmate Pete Wentz and his model girlfriend, Meagan Camper, attended the wedding. Wentz, 33, split from Ashlee Simpson, the 27-year-old mother of son Bronx, 3, in February 2011.

Stump took his career solo in January 2010 and released his own album, Soul Punk, in October 2011.

In an interview with Us at that time, Stump clarified that the band behind such hits as "Sugar, We're Goin Down" and "Dance, Dance" had not broken up. "We just kind of stopped touring, not with any degree of permanence. To my knowledge, the band is not broken up, but we did really need some space and a break, and there were really legitimate creative differences," he said. "None of those differences were interpersonal at all. I love those guys, I have nothing against those guys at all, and I definitely miss playing with them."