Britney Spears recalls Pretty Girls performance with Iggy Azalea: 'Was so much fun'

Britney Spears and Iggy Azalea are showering love on each other.

On Tuesday, the 39-year-old singer turned to her Instagram and shared a throwback picture from a concert in which she and Azalea performed together.

"Me and Iggy on stage !!! It was so much fun working with such a strong, badass woman like her …. I haven’t met her new baby but if she’s reading this God bless you and thank you for all your kind words !!!! Pssss although the name of the song is Pretty Girls I think the concept is more like revenge of the NERDS," wrote Britney alongside the caption.

Azalea was quick to send love for Britney's adorable post in the comments.

"I absolutely adore you more than words (and I still have the barbies you gave me)," wrote the rapper, 31. "Loving you always you brilliant, too-genius-for this-world-to-understand, kind hearted, gracious & beautifully ethereal being. We are definitely two big ole goofballs in the best way possible."

Friend Paris Hilton then commented on the post, singing praises for both of her fellow singers.

"I love both of you girls so much!! Queens."