"I Have a Dream" is a cover version of the song written by Benny Andersson and Bjorn Ulvaeus and sung by the Irish boy band Westlife, it was released in December 1999, twenty years after ABBA's original release. The song became the group's fourth UK number-one single. The release was a double-A-side, also featuring "Seasons in the Sun". The release became the UK's Christmas number-one single of 1999, extending its peak into January 2000 and spending seventeen weeks in the UK chart. The song was the 26th best selling single of 1999 in the UK
"Seasons in the Sun" is an English-language adaptation of the song "Le Moribond" by Belgian singer-songwriter Jacques Brel with lyrics by American singer-poet Rod McKuen. It became a worldwide hit in 1974 for Canadian singer Terry Jacks and became a Christmas Number 1 in 1999 for Westlife.
Westlife covered "Seasons in the Sun" for their self-titled debut album Westlife (1999). It was released on December 19, 1999 as a double A-side with a cover of ABBA's "I Have a Dream" and became the 1999 Christmas number one. It has sold over 650,000 copies in UK so far.