Primetime just got a lot more colorful, thanks to two reality show standouts and longtime pop rivals: The Voice's Christina Aguilera and X Factor's Britney Spears.

Both singers (and former Mickey Mouse Club costars) recently debuted bright, rainbow-colored hair extensions. Aguilera, 31, hit The Tonight Show With Jay Leno September 28 rocking neon pink and purple ends; last week, Spears, 30, mixed pink, purple, and turquoise pieces in with her honey-colored locks.

For her new music video, "Your Body," Aguilera sported a variety of similarly edgy hairdos, which she created with the help of celeb hair pro Mark Townsend.

"Christina is such an artist and she is very visual, so I love to collaborate with her and play with hairstyles," Townsend told Us Weekly about teaming up with the vocalist. "She is really into color in her hair . . . so we incorporated those trends into some of the styles."

Despite their newly matching locks -- and their equally impressive TV gigs -- Aguilera told reporters at a Voice press junket that there's absolutely no competition between the two former Mouseketeers.

"I came up with Britney . . . We were very close. Our paths have always crossed and they continue to cross," she shared at the conference, which took place just a couple of weeks before Spears' X Factor debut. "I welcome her to this family of fun and entertainment and finding new talent . . . I know she's a pro and she's going to give, I think, great advice."

Tell Us: Whose colorful extensions do you like better: Britney Spears' or Christina Aguilera's?

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21,538 Votes
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5,228 Votes

Watercooler Poll

Whose colorful extensions do you like better?

Britney Spears
Christina Aguilera