Christina Aguilera's Boyfriend Matthew Rutler is a Songwriter - Exclusive

Christina Aguilera holds hands with boyfriend Matthew Rutler as they catch a departing flight out of LAX Airport on Thursday (June 14) in Los Angeles.
PHOTOS: Check out the latest pics of Christina Aguilera
The 31-year-old entertainer and Matthew have been collaborating professionally!
“Matt has come a long way from being a production assistant on Christina‘s movie Burlesque,” a source exclusively tells JustJared.com. “He’s now a songwriter, working on new tracks for her new album. People will be surprised by the sound they’ve put together.”