Christina Aguilera: 'Open' To Singing At the Super Bowl!

Christina Aguilera and her ex-husband Jordan Bratman take their son Max to a Halloween party on Monday (October 31) in Brentwood, Calif.

The 30-year-old entertainer wore a skull and bones sweatshirt, and her 3-year-old son looked adorable as a medieval knight!

PHOTOS: Check out the latest pics of Christina Aguilera

Christina‘s hit singing competition television show The Voice is premiering on February 5 after the Super Bowl. Christina even said she’d sing at the big game!

“I’m open. Hey, I’m up for any challenge, any time any day,” Christina told Access Hollywood.

10+ pictures inside of Christina Aguilera and Jordan Bratman taking Max to a Halloween party…