Max and Christina (how about that pink hair?) shop for the perfect Halloween pumpkin.

Christina Aguilera has a spot of pink hair (see pic above) as the singer gets into the Halloween spirit as she takes her son Max to pick the perfect pumpkin in So Cal.

Christina is one of the judges of The Voice 2012 and works alongside Cee Lo Green, Blake Shelton and Adam Levine.

She took a break this weekend for some Halloween fun and she and her son looked happy to be spending time with his flamboyant mom as the pair visited a pumpkin patch in Hollywood, California.

More notes on Xtina…

Earlier it was revealed that Aguilera and fellow The Voice judge Adam Levine love to prank their fellow coaches.

The ‘Your Body’ singer announced just last month that she will take a break from the show next season in order to focus on her new album and Christina admitted leaving will be “bittersweet” because she has so much fun with her fellow mentors.

She told E! News: "It's bittersweet. I so enjoy being a coach to my team on ‘The Voice’ [and] and at this point in season three, all of us coaches have truly bonded.

"When me and Adam are on breaks backstage, you know, we're writing profanity with my red lipstick all over Blake [Shelton]'s trailer while he's napping inside. It's like we have definitely become like brother and sister. We goof around and play around. I'm going to miss it."

© Bang Showbiz