The group went on to receive large success, achieving a string of 20 consecutive UK top ten singles (including four number ones), two UK number one albums, five consecutive platinum selling studio albums, and receiving nominations for five BRIT Awards, winning Best Single in 2009 for "The Promise".

[4] While attending Thornhill College in 2001, Coyle auditioned for the Irish version of the reality television talent show Popstars, on which Louis Walsh was a judge.

[10] The group released their debut album Sound of the Underground in May 2003,[11] which entered the charts at number two and was certified platinum by the British Phonographic Industry (BPI) later the same year.

Girls Aloud's collaborations with Brian Higgins and his songwriting and production team Xenomania earned the group critical acclaim,[13] due to an innovative approach to mainstream pop music.

The group became one of the few UK reality television acts to achieve continued success, amassing a fortune of £30 million by May 2010.

[20][21][22] She enlisted Barbara Charone, who has worked with Madonna and Christina Aguilera, as a publicist and Bruce Garfield as her manager.

[2][27] She worked with a number of famous songwriters and producers during recording sessions, such as Desmond Child, Guy Chambers, Mike Elizondo, Steve Booker, Toby Gad, Tony Kanal and newcomer Ricci Riccardi.

Co-written with Guy Chambers and produced by Ricci Riccardi, the song has an "80s feel" and "a harder, guitar-led sound.

On the programme she sang a cover of "Dangerous Games", shortly thereafter she announced she would star alongside Flatley on his 2014 tour on select dates.

[35] In March 2015, Coyle spoke about the details concerning her second album, stating that she intended on signing with a major label and that the sound is "similar" to that of London Grammar.

[41][42] In 2019, Coyle returned to the music scene with her summer anthem "Fool for Love", produced by Brian Higgins of Xenomania.

[needs update] In October 2022, Nadine sang a cover of the Cranberries classic "Zombie", as it was voted the number 1 Irish song of all time by RTE2FM listeners.

[42] In July 2023, Coyle attended the European premiere of Barbie and released a new single, a cover of Snow Patrol's classic "Chasing Cars".

Coyle made a cameo appearance in Natasha Bedingfield's video for "I Wanna Have Your Babies".

[45] Coyle contributed to the book Dreams that Glitter - Our Story, an autobiography with her Girls Aloud bandmates, in October 2008.

[46][47] The book featured unseen photographs and included insights into the members' personal lives, their success together, style tips and "everything we've learned about life, love and music.

"[47][48] As a member of Girls Aloud, Coyle has also endorsed Barbie, KitKat, Nintendo DS, Samsung, Sunsilk and Pandora.

[49][50] In December 2009, Coyle visited her hometown of Derry to successfully break the record of the most trees planted in one site in an hour by 100 volunteers.

[53] In March 2018, Coyle appeared in Fabulous Magazine with a cover photo shoot and feature interview where she discussed life after Girls Aloud.

[63] In 2015, after nine years in Los Angeles, Coyle closed down Nadine's Irish Mist and moved back to Northern Ireland to raise her daughter Anaíya.