Trivia

Debut single "Swear It Again" became the biggest-selling single in a week one by a debut artist in 1999.

Members have included Brian McFadden, Nicky Byrne, Kian Egan, Mark Feehily and Shane Filan.

Irish band.

Musical guest for the swedish talk show TV-Huset (December 2005)

They have a total of over a billion views in Youtube, sold over 55 million records worldwide.

First official number one artist and single in the UK Downloads Chart.

Biggest arena act of all time in the United Kingdom.

Three of their studio albums were part of the 50 fastest selling albums of all time.

The first Irish act to have both Album and Single as Number One on the same week.

Guinness World of World Records holders for being the first music act and band to have its first seven singles at the top of the Official UK Singles Chart and as the Biggest Selling band in the 2000s decade in the United Kingdom.

They have 14 UK #1 and 25 Top 10 hits in UK Singles Chart. 7 #1s and 12 Top 5s in UK Albums Chart.

Most performed professional and international music act in X Factor UK.

First and only music act to have a four number one singles in the music charts in only a year in the United Kingdom.

"Westlife" debut album produced most original number one hits in the United Kingdom by a male group, music act or group act only tied with Spice Girls and B*Witched. The said singles were "Swear It Again", "If I Let You Go", "Flying Without Wings", and "Fool Again".

First boy band to hit the #1 with its first two singles ("Swear It Again", "If I Let You Go") in 1999.

In 2016, three of their songs (I'll See You Again, Flying Without Wings, You Raise Me Up) made it on the top pop music choices for funerals in Ireland.