Crystal Bowersox Marries Brian Walker

Crystal Bowersox at the 2010 American Idol Live! Tour on July 1, 2010 in Auburn Hills, Michigan (Bill Pugliano/Getty Images)

NEW YORK (CBS) "American Idol" Season 9 runner-up Crystal Bowersox has tied the knot with her musician beau Brian Walker.

PICTURES: Celebrity Weddings and Engagements

The couple, who announced their engagement last month, exchanged vows in front of 60 guests on Sunday in Chicago, her rep confirmed to People magazine.

"Our lives have never made more sense than they do right now," Bowersox, 25, said. "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."

Bowersox wore an eco-friendly hemp and cotton gown from Vermont designer Tara Lynn. 

Her 1-year-old son, Tony, from a previous relationship, served as the ring bearer.

Among the friends and family in attendance were Season 9 "Idol" contestant Didi Benami and "It's Always Sunny in Philadelphia" actor Lance Barber.