World of Our Own is the third studio album recorded by Irish boy band Westlife. It was released through RCA Records on 12 November 2001. This is their third album release under RCA and Sony Music. It was also the band's third album to be released as a five-piece. It reached number one in the United Kingdom and includes the singles "Queen of My Heart" (which was a double A-side with "When You're Looking Like That"), "World of Our Own" (which was a double A-side with "Angel"), "Bop Bop Baby", and the final single from the group's last album, "Uptown Girl". "Evergreen" was later covered by Will Young as his winner's single for the 2002 Pop Idol competition. It is their first album to have a title track.

Unbreakable – The Greatest Hits Volume 1 is the first greatest hits album by Irish boy band Westlife. The album was released on 11 November 2002. It was also the band's fourth album to be released as a five-piece and with RCA Records and Sony BMG. The album consists of all of the group's past singles, along with six new songs. Hit single "Flying Without Wings" was re-recorded as a duet with South Korean singer BoA and Mexican singer Cristian Castro, and each respective duet was included on the Asian and Spanish editions of the album respectively. The first single released from the album was "Unbreakable", a UK number-one single. The second single, the double A-side "Tonight" / "Miss You Nights" peaked at number three in the UK and at number one in the Republic of Ireland.

Coast to Coast is the second studio album by Irish boy band Westlife. It was also the band's second album to be released as a five-piece. It was released on 6 November 2000 by RCA Records. Five hit singles were released from the album: "Against All Odds", "My Love", "What Makes a Man", "I Lay My Love on You" and "When You're Looking Like That". The album was a commercial success in both Ireland and the United Kingdom, selling 1.8 million copies in Britain alone. The album was the third-best selling of 2000 in Britain. As of October 2001, it sold seven million copies worldwide.
In January 2005, the album was re-issued in a two-in-one box set compilation with the group's third album, World of our Own. A video album, entitled Coast to Coast - Up Close and Personal, was released on 27 November 2000. It peaked at number one on the UK Visual Chart and a certified 3× Platinum.