Christina Aguilera is calling foul on Pink’s claim that their longstanding feud was the result of the “Beautiful” singer taking a swing at her in a club back in the day. The beef began when they worked together on the 2008 cover and video for “Lady Marmalade.” While they’re friendly now, Pink finally revealed the big reason behind their chilliness during a Watch What Happens Live with Andy Cohen appearance in 2017. She said she had an altercation with Xtina, 38, who took a swing at her. NO WAY did that ever happen the pint-sized vocal powerhouse told Andy during her Jan. 31 very first appearance in the clubhouse. Not only that, she revealed Pink mean-girled her in another way.When Andy asked Christina during Plead the Fifth if Pink’s story was accurate, she said that she never would have dreamt of going after her former rival in a physical way. She’s only 5’2? and was super petite when they were working on “Lady Marmalade” and would never have tried to rumble with the more muscular — and taller — Pink, 39. “Look at her and look at me. I wouldn’t swing on her. She’s like…she could beat my ass. And she could really beat my ass back then,” Christina revealed with a smile and laugh.The former Voice judge said that there was a some bad blood between the two because Pink “Intimidated me a lot. She was heckling me behind the director and I was like ‘what’s going on’” when they were shooting the video for “Lady Marmalade.” However, Xtina added that, “She’s a different person now. She’s like a mom, she’s cool.”