It's the first marriage for Bowersox, 25, who has a son, Tony, 1 ½, from a previous relationship. Bowersox is currently recording her debut album.
As her career takes off, her love life has also been on fast-forward.
Just last May, she famously broke up with her then-boyfriend hours before the final performance night. She said the split was mutual but that she drew on her raw emotions while singing a moving rendition of Patty Griffin's "Up to the Mountain."
Bowersox went on to become the judge's favorite, but Americans voted for Lee DeWyze in the finale.