Congrats are in order for 'American Idol' runner-up Crystal Bowersox, who said "I Do" to musician Brian Walker in an intimate wedding ceremony in Chicago on Sunday. Engaged for only a few weeks, the husky-voiced singer and her beau have been friends for years.

"Our lives have never made more sense than they do right now," Bowersox told PEOPLE. "I can't believe how incredibly lucky we are to have found so much laughter, love and light within each other. We're one happy WalkerSox family."