
Nicholas Bernard James Adam Byrne, Jr. is an Irish singer, songwriter, radio presenter, dancer, television presenter and former professional footballer, best known for being a member of Irish music band Westlife; he is the band's oldest member. Westlife has since released twelve albums, embarked on thirteen world tours, and won several awards, becoming one of the most successful musical groups of all time.

Kian John Francis Egan is an Irish singer, multi-instrumentalist, and songwriter, best known as a member of International vocal group Westlife. Westlife has since released twelve albums, embarked on thirteen world tours, and won several awards, becoming one of the most successful musical groups of all time. He was a coach on The Voice of Ireland and won the thirteenth series of I'm a Celebrity...Get Me Out of Here! in 2013.

Markus Michael Patrick Feehily is an Irish singer and songwriter. He is one of the two lead singers of the vocal group Westlife. He is the youngest in the band. Westlife has released twelve albums, embarked on thirteen world tours, and won several awards, becoming one of the most successful musical groups of all time. With 15 number one appearances, he is also the highest-charting LGBT performer and Irish LGBT performer on the UK Singles Chart.

Shane Steven Filan is an Irish singer and songwriter. He is the lead singer of boy band Westlife, which was formed in 1998, disbanded in 2012, and regrouped in 2018. Westlife have released thirteen albums, embarked on twelve world tours, and won several awards, becoming one of the most successful musical groups of all time.

Pina Kollars is an Austrian-born female folk rock singer. She is usually only known as Pina.

Monetochka is the stage name of Elizaveta Andreevna Gyrdymova, a Russian singer-songwriter.
Steve Nieve is an English musician and composer. In a career spanning more than 40 years, Nieve has been a member of Elvis Costello and the Attractions, the Imposters and Madness. He has also experienced success as a prolific session musician, featured on a wide array of other artists' recordings.

Mark Andrew White is an English singer, songwriter, composer, musician and record producer.