The ex-arch enemies, who clashed recording 2001’s smash hit Lady Marmalade, have worked on a secret duet which could hit the charts next year.
In an exclusive interview, Pink said: “We did a duet for her album and I don’t know when it’s coming out but it’s amazing.
“We did it two years ago so I don’t remember the title, but she’s incredible.”
And her new-found friendship with Xtina is so strong that the Grammy-winner lashed out at fans who tried to reignite their feud by claiming she gave shady looks during her pal’s WHITNEY HOUSTON tribute at the recent American Music Awards.
She added: “Yes, it is really frustrating, but I fight back.
"I do it less than I used to but I do when I think the narrative needs to be changed.
"It’s bulls**t, I’m not gonna stand for it. But I’m used to it, to be honest.
"And this never happens to men, it’s very specific to females.”