Aguilera and Rutler have been dating for over three years after meeting on the set of Aguilera's 2010 film Burlesque. They became acquainted while she was in the middle of divorcing her ex-husband Jordan Bratman, with whom she wed in November 2005 and has a six-year-old son named Max Liron.
The Voice coach and Bratman split in October 2010 and finalized their divorce on Valentine's Day 2011.
Aguilera had been expected to return to The Voice after Shakira filled in for her for Season 6, however, she won't be returning to the show and sitting in one of the four big red chairs until Season 8.
Aguilera starred on The Voice for its first three seasons before taking a break in Season 4, when she was replaced by Shakira, to spend time with her son and concentrate on her music career. The singer returned to serve as a coach for Season 5.