Pink Christina Aguilera
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The early aughts were a time of Juicy tracksuits, super-low-rise jeans, and many, many high-profile celebrity feuds, including the one between Pink and Christina Aguilera. And although the "Lady Marmalade" collaborators have since squashed their beef, enough time has evidently passed that they can now look back on it and laugh, as Pink did during an appearance on Watch What Happens Live on Thursday.

While playing "Plead the Fifth" — basically a truth-only version of Truth or Dare — with host Andy Cohen, the "So What" singer explained why she and Aguilera clashed so viciously at the time. "We were super young and super new at the whole thing, and I think I'm an alpha, and she's an alpha," Pink said. "I'm used to taking my altercations physical and she's used to having them verbal. We're just very different, we're very different. And we were very young and new."

"Women have to learn how to support each other. It's not taught to each other in the playground," she continued, before revealing that one time, things between her and Aguilera, now ages 38 and 36, respectively, almost took a very playground-esque turn. "Actually, she swung on me in a club. Hilarious!" she said. "I was like, 'What's happening right now? What's happening?'"

But, according to Pink, there are no hard feelings between them now. "She's so talented and, deep down, I've had bad days, too. She's a really sweet person. We made up on The Voice," she said. "I hadn't seen her in years and years and years." She added that their make-up all comes down to one thing: "We became moms. We grew up. We hugged it out. It's that simple. I feel so good about that."

In a VH1 Behind the Music special in 2009, Pink revealed that the feud had begun while she, Aguilera, Lil' Kim, and Mya were recording "Lady Marmalade" for the Moulin Rouge! soundtrack in 2001, when they were in their early 20s, according to People. "[Label executive] Ron Fair walked in. He didn't say hi to any of us and said, 'What's the high part? What's the most singing part? Christina's going to take that part,'" she said. "I stood up, and I said, 'Hi. How are you? So nice of you to introduce yourself. I'm Pink. She will not be taking that part. I think that's what the f*cking meeting's about.'"

But earlier this year, Pink revealed that she and Aguilera had settled their differences. After someone tweeted that she was nothing but an "Xtina backup singer," Pink replied, "Want to point out an awful new phenomenon of the last 10'years. We can no longer be happy for each other. I ❤️Xtina, we've made amends....Music brings us all together. The best part of music is- there's room for everyone to win at the same time. Don't be what's wrong w/da world."

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