Christina Aguilera Shows Support For Britney Spears' 'X Factor' Gig

'The Voice' judge calls Spears 'a pro' in new interview.

Christina Aguilera and Britney Spears came up together on "The Mickey Mouse Club" before each found fame and fortune in the late '90s as rival pop princesses. Now, they find themselves on rival singing competition shows. But if you expect the claws to come out, these days Aguilera is keeping hers firmly retracted.

"I'm not down with [pitting women against women] at this point of my life," "The Voice" judge told about Spears' spot on the "X Factor." "I have no patience for it, so I'm like, 'the more the merrier.' It's a fun thing to be a part of and I think she'll have fun with it."

In fact, Aguilera only had the kindest words for her fellow Mouseketeer, sharing that she thinks that her one-time adversary "is a pro" and that she will "give great advice."

"Our paths have always crossed and they will continue to cross," Aguilera added. "I welcome her to this family of fun and entertainment and finding talent as well."

Aguilera's comments come hot on the heels of some format shake-ups on her own show. The show's third season, kicking off on September 10, will now include "battle rounds" and a "knockout round." As for "X Factor," Spears will start her run on the show beginning just days later on September 12.

Speaking of Aguilera's other career, the rumor is she is slated to drop her Max Martin-produced single sometime this month. It is the lead single off her highly anticipated follow-up to 2010 album, Bionic.