"This is just beautiful. Thank you!" one eager fan said.
"Cutest thing I've watched in a while!" another wrote.
A third echoed, "P!nk’s and her daughter’s voices are magical together."
Before the pair started singing, Pink joked to her daughter, ""I think you're fun. I'm glad I had you."
"I grew up listening to Annie and no one has done this for me, for my heart since I was a little girl," Pink revealed in the clip. "And to have her finally have something like this...You made our favourite movie ever."
Pink and husband Carey Hart also share one-year-old Jameson Moon.