Swear It Again

"Swear It Again" is a 1999 debut single by Irish group Westlife and is the leading single from their debut studio album Westlife. It went to number 1 in the United Kingdom, New Zealand and Ireland, number 20 in the United States and Spain, number 12 in Sweden and Australia, number 2 in Scotland, number 31 in Iceland, number 27 in the Netherlands, number 25 in Switzerland and number 28 in Canada.

"Swear It Again"
Single by Westlife
from the album Westlife
B-side	"Forever"
Released	19 April 1999 (1999-04-19)
Studio	Rokstone (London, England)
Length	4:07
Label	RCA BMG
Songwriter(s)	Steve Mac Wayne Hector
Producer(s)	Steve Mac
Westlife singles chronology
"Swear It Again" (1999) "If I Let You Go" (1999)
UK CD2
Music video
"Swear It Again" at YouTube
Music video
"Swear It Again (Car Wash Version)" at YouTube

Track listings

UK CD1

1. "Swear It Again" (radio edit) – 4:04
2. "Forever" – 5:05
3. CD-ROM (includes filmed interview with Ronan Keating + video clips)

UK CD2

1. "Swear It Again" (radio edit) – 4:04
2. "Swear It Again" (Rokstone mix) – 4:07
3. "Ronan Keating Interviews Westlife" (audio) – 3:36

UK cassette single

1. "Swear It Again" (radio edit) – 4:04
2. "Forever" – 5:05
3. "Ronan Keating Interviews Westlife" (audio) – 3:36

European CD single

1. "Swear It Again" (radio edit) – 4:04
2. "Forever" – 5:05

US CD and cassette single

1. "Swear It Again" – 4:06
2. Snippets from Westlife

Australian CD single

1. "Swear It Again" (radio edit) – 4:04
2. "Swear It Again" (Rokstone mix) – 4:07
3. "Forever" – 5:05
4. "Ronan Keating Interviews Westlife" (audio) – 3:36
5. CD-ROM (includes filmed interview with Ronan Keating + video clips)

Australian and Japanese CD EP

1. "Swear It Again" (radio edit) – 4:04
2. "Until the End of Time" – 3:10
3. "Forever" – 5:05
4. "Everybody Knows" – 3:45
5. "Let's Make Tonight Special" – 4:52
6. "Don't Calm the Storm" – 3:46
7. "Ronan Keating Interviews Westlife" (audio) – 3:37