Britney Spears slams Christina Aguilera's raunchy Rolling Stone cover with Justin Timberlake in memoir

LOS ANGELES, CALIFORNIA: Britney Spears chastised Christina 'Xtina' Aguilera, her pop rival, for choosing to embark on The Justified & Stripped Tour with her ex-boyfriend Justin Timberlake in 2003, one year following their painful breakup. Aguilera and Timberlake were also on the cover of a Rolling Stone issue at the time.

Britney and Christina shared a dressing room during their time as Mouseketeers on 'The Mickey Mouse Club' on Disney Channel from 1993 to 1994. This is how the talented trio first got together.

Aguilera 'had a feeling' Britney and Timberlake would be back together

In 2003, Aguilera told Rolling Stone that she had "a feeling that there's going to be some reconciliation," even though Spears and Timberlake had ended their three-year romance. "They converse and everything, and that's cool. I don't believe it is finished," she said.

Meanwhile, Spears, now 41, wrote in her memoir 'The Woman In Me', "They were together on the cover of Rolling Stone, him in a black tank top, looking at her with sexy eyes, her looking out at the camera, wearing a lace-up black shirt."

She wrote, "In that story, she said she thought Justin and I should get back together, which was just confusing, given how negative she'd been elsewhere."

Britney feels 'they were just pouring salt in the wound'

Britney continued, "Even if they weren't trying to be cruel, it felt like they were just pouring salt in the wound. Why was it so easy for everyone to forget that I was a human being — vulnerable enough that these headlines could leave a bruise?"

Although Spears' 13-year conservatorship restricted her alcohol intake, she acknowledged that she was envious of the 42-year-old R&B singer for being able to party with some of their shared backup dancers, as reported by Daily Mail.

The Mississippi-born mother-of-two wrote, "[Christina] seemed pretty messed up. It would have been nice to have drinks with them, to get rebellious, sassy, fun.'"

However, Britney also wrote that Aguilera and Gwen Stefani looked "really professional on TV" and that "when the camera is on them, they thrive." These two stars both appeared on 'The Voice' in 2016.

Strangely, Spears left out the five-time Grammy winner entirely from a section of her 288-page expose where she talked about her open-mouth kiss with Madonna at the 2003 MTV Video Music Awards. Aguilera had also famously shared a kiss with the queen of pop during the event.

That famous Madonna kiss

Christina recalled telling Blender that the pop star, who is now semi-retired, "seemed nervous the whole time" and appeared to be a "lost little girl, someone who needs guidance."

In 2004, Britney mocked Aguilera's remarks to the same publication, saying, 'When someone has been rude to you so many times, it's like, "You know what, Christina, I'm really not about the fake anymore."

This could explain why Aguilera, who is half Ecuadorian and was born in Staten Island, stumbled when Jimmy Kimmel asked her last week if she wanted to be in 'The Woman In Me'. "I would rather be you than myself," she said.

Christina added, "I'm hoping that, you know, everything is all good with her and everything's beautiful. So, you know, I think the future should be celebrated."

Simon & Schuster paid Spears $15 million to write her much-awaited memoir, which will be released on Tuesday and has already topped Amazon's list of best sellers.