Christina’s going to take that part,’” Pink claimed in her 2009 VH1 “Behind the Music” special. “And I stood up, and I said ‘Hi. How are you? So nice of you to introduce yourself.

During the 2017 American Music Awards, Aguilera hit the stage for a musical tribute to Whitney Houston — and Pink's reaction to her performance immediately began to circulate online.

Christina Aguilera sends love to Britney Spears ahead of 'The Woman in Me' launch. But Aguilera, who came up alongside Spears, doesn't want to be in the book.

Burlesque the Musical - the first ever stage adaptation of Steven Antin’s crowd-pleasing musical sensation, Burlesque, which starred Christina Aguilera, Cher, Kristen Bell and Stanley Tucci ...