10/10/2010 AT 9:30 PM ET
They had a whirlwind courtship and an engagement lasting only weeks, but Crystal Bowersox and Brian Walker were hardly strangers in love.
Longtime friends before things turned romantic in recent months, the American Idol runner-up was married to musician Walker in Chicago on Sunday, her rep tells PEOPLE exclusively.
“Our lives have never made more sense than they do right now, Bowersox tells 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.”