Little Mix Debuts Catchy Breakup Revenge Song -- Is It a Dig at Zayn Malik?

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Shout out to... Zayn Malik?

Perrie Edwards takes the lead on Little Mix's catchy new song, "Shout Out to My Ex," which the girls debuted with a high-energy performance on Sunday on The X-Factor UK.

With her bandmates by her side, Edwards doesn't mince words on her first verse.

"This is a shout out to my ex/Heard he in love with some other chick/Yeah that hurt me, I'll admit/But then that boy I'm over with," she sings, aiming below the belt on her next lyrics.

"I hope she's gettin' better sex/Hope she ain't fakin' like I did," Perry croons -- with an adorable smirk on her face, natch. "Took four long years to call it quits/Forget that boy I'm over it."

WATCH: Perrie Edwards Talks Being 'Single and Ready to Mingle,' Reveals Hunky Celebrity Crush 

Edwards and Malik met in 2011 during the eighth season of The X Factor UK. At the time, Little Mix was competing on the series, while Malik's One Direction -- which finished in third place one year earlier -- had returned for a performance. Little Mix would go on to become the first and only group to take the show's top prize.

The couple became engaged in 2013, but split in 2015. (For those fact-checking the lyrics: Yes, that's "four long years to call it quits.") 

That same year, Malik also called it quits with One Direction, leaving the band to pursue a solo career. He released a debut solo album, Mind of Mine, in 2016.

Today, Malik is in a relationship with model Gigi Hadid. The pair made it official after appearing together in his steamy "Pillowtalk" music video earlier this year.

Edwards reportedly got candid about how Malik called off their engagement in a leaked excerpt from Little Mix's upcoming book, One World

"It was horrible, the worst time in my life. A four year relationship, two year engagement ended by a simple text message, just like that," Edwards writes.

It's an allegation that Malik has previously denied, telling The Fadermagazine last year that he had too much respect for his former fiancee "than to end anything over text message."

"I love her a lot, and I always will, and I would never end our relationship over four years like that," he said at the time. "She knows that, I know that, and the public should know that as well."

READ: Niall Horan and Zayn Malik Open Up About Life After One Direction 

Well, it sounds like Edwards surely is "over it" by now. The chorus of Little Mix's new song -- which was penned by the girl group, alongside Camille Purcell, Iain James and Electric -- is all about empowerment.

"Shout out to my ex/You're really quite the man/You made my heart break and that made me who I am," the girls sing together in unison. "Here's to my ex/Hey look at me now/Well I'm all the way up/I swear you'll never bring me down."

"Shout Out to My Ex" will be featured on Little Mix's fourth studio album, Glory Days, due out on Nov. 18. After that, Edwards, Jesy Nelson, Leigh-Ann Pinnock and Jade Thirlwall will join Ariana Grande on her Dangerous Woman North American tour, kicking off Feb. 2 in Phoenix, Arizona.

Just last year, Little Mix was busy promoting their "very colorful" Get Weird album and stopped by ET to chat all about it. Watch below!

WATCH: Little Mix Explains 'Get Weird' Album Title and Talks One Direction Hiatus