"Pretty Girls" is a song recorded by American singer Britney Spears and Australian rapper Iggy Azalea.

[11][12] On March 29, 2015, on the red carpet of the 2nd iHeartRadio Music Awards in Los Angeles, Azalea confirmed "Pretty Girls" would be featured on Spears' upcoming album during an interview with MTV News and explained the song's evolution mentioning its final version being a real duet with her also joining Spears on the chorus instead of an actual featured rapping.

[14] On April 30, 2015, the single artwork, an illustration of the artists in an outer space background referring to the '80s film Earth Girls Are Easy, was unveiled online.

For six hours between 3pm-9pm PDT on that day, requesters in Los Angeles were able to ride select Britney-themed vehicles called "Bees" while listening to the song and have a chance to win surprise gifts and tickets to her show, Britney: Piece of Me in Las Vegas.

Jason Lipshutz of Billboard gave the track a positive review, saying "pop and pop-rap fans are likely to swarm this slick slice of electro-hop, which pulls off the blonde-bombshell pairing by playing to each of its artists' strengths," adding that Spears "sounds more animated in her two minutes of action here than on the entirety of 2013's Britney Jean album," and praising The Invisible Men's production claiming it differs just enough from Azalea's previous singles having "bestowed her with another stylish banger.

"[1] Jim Farber of the New York Daily News claimed the track "is a breezy, summer song that will get stuck in your head" but lacking "the snap, and the freshness" of "Fancy".

"[21] Hardeep Phull of the New York Post criticized the song's similar production to "Fancy" and described it as "a woefully formulaic rehash.

"[22] August Brown of the Los Angeles Times mentioned the "bubbly electro-trap beats, a lot of teen-sassy rapping and the two sharing lead singing vocals on the chorus," also commenting "your summer song sweepstakes bracket just got an early contender.

"[23] Lucas Villa of AXS remarked the "anthemic chorus about girl power in the party scene" and the "plucky production kicks" with a sound marrying '80s dance music like Debbie Deb's "Lookout Weekend" and recent hits "Fancy" and "Hollaback Girl," also complimenting Spears for finally giving fans "something more urban in the same vein of 2007's Blackout" and that both artists "make good on their promise to "bring the noise" on this attitude-packed club banger.

"[24] Hugh McIntyre of Forbes referenced a polarizing reception of the track that was "already being heralded by some as a fantastic new direction for the singer, while others aren’t so sure.

The dance-pop, girl power jam has a catchy beat and some pretty great track art,"[26] while Ian David Monroe of V expressed the same thoughts, "And you won't hear any complaints from us.

"[28] Mike Wass of Idolator stated the "Bay Area hip hop-indebted club banger" is a "seemingly inevitable summer smash," and that "Britney serves Blackout-era attitude on the catchy chorus.

For the issue dated July 18, 2015, the single peaked at the apex of the Billboard Hot Dance Club Songs Chart, becoming her ninth No.

[40] In a Twitter Q&A with fans in the following month, Azalea expressed her desire to have done additional promotion and television performances to support the song commercially.

I got new choreographers to come in and kind of do hip-hop dancing, which I haven’t done in a really long time, so the feel of the video is really different and hi-energy.

[47][48] In the '80s-inspired visuals seen on the candid images, Spears wore a sexy leopard print top, ripped blue jeans, and pumps with matching sunglasses, triangle-shaped earrings, and pink lipstick, while Azalea was wearing matching denim jacket and shorts with crimped hair, while posing together in a bright red convertible Fox-Body Mustang and with Spears also driving around in a yellow Jeep CJ.

During an interview with USA Today, Azalea talked about the concept of the music video, mentioning Spears' signature dance scenes, "I think Britney's identity is really embedded in being a dancer, and that's something she really wanted to do as well.

Azalea revealed she looked to actress Geena Davis when modeling her style, describing her as "the ultimate '80s pin-up hot, cool type of girl" that Britney also liked.

They brainstormed the concept for the video, deciding on a send-up of 1988 sci-fi comedy Earth Girls Are Easy, which starred Davis.

[55] Two women dress up in '80s fashion and drive in a bright yellow jeep to a car wash, where Spears and backup dancers break into dance.

Meanwhile, Azalea's alien powers cause a television to explode, water to turn pink and an ATM to begin shooting cash, which Spears dances around.

Nightfall arrives and two women head to a club where Azalea raps and Spears and dancers choreograph a synchronized dance break.

Mike Wass for Idolator wrote, "Yes, it lifts product placement to previously unimagined heights and I can’t see an Academy Award in either diva's future — but it’s a hell of a lot of fun.

[58] Kirthana Ramisetti for New York Daily News similarly noted, "The two music stars seemed to have a lot of fun filming their video".