Christina Aguilera jokes that she made herself a "Trivial Pursuit" question after she famously flubbed a line from the U.S. national anthem at the 2011 Super Bowl.
I'd been singing that song my entire life," the 30-year-old Grammy-winning singer said on "The Ellen DeGeneres Show," when asked about the incident. "I sang for the Steelers when I was this big, I think age 7 or 8. I took in the moment a little too much. Shoot me for appreciating the moment! That night, I knew - I just made myself a 'Trivial Pursuit' question. 'In 2011, what female singer flubbed the lyrics..'"
"I had a really good laugh about it," she added. "You get over things and you get back up again and you just prove to yourself and everyone that you're just that much stronger."
After her flub, Aguilera issued a statement apologizing for her error. She told DeGeneres that she was unaware of her mistake during her performance.
"When I got off the stage, of course there's someone with a microphone that was like, 'Amazing job. How did it feel to flub the lyrics?'" she said.
Aguilera also acknowledged she is dating again following her divorce from Jordan Bratman, father of their 3-year-old son, Max. She recently finalized her divorce, months after she and Matthew Rutler, 25, were seen out together in recent months, spurring rumors of a romance.
"There's someone very lovely in my life, yes," Aguilera told Ellen DeGeneres on her show, when asked if she has a new boyfriend.
In March, Aguilera was detained for public intoxication during a night out with Rutler, who was suspected of driving under the influence. The two were not charged.
Aguilera, who starred in the Disney series "The Mickey Mouse Club" in the 1990s, is set to return to television with the singing contest show "The Voice," which debuts on NBC on Tuesday, April 26 at 9 p.m. ET. She has said that she hopes to use her life experiences to help contestants she mentors on the program.
On "The Voice," Aguilera joins fellow judges Adam Levine of the band Maroon 5, "Forget You" singer Cee Lo Green and country music artist Blake Shelton.
They will recruit eight contestants to mentor as singers and this "blind" process will be done without having seen the hopefuls' faces. The judges' team members will compete against their peers, after which one will be picked as a finalist to go up against the other team winners. Viewers at home will then vote on the winner, win a recording contract and $100,000.
Check out a video of Christina Aguilera on "The Ellen DeGeneres Show" and a preview for "The Voice" below.