The Definitive Collection is a 2001 compilation album of all the singles released by Swedish pop group ABBA. It consisted of two discs: the first featuring the singles from 1972 to 1979, and the second including the singles from 1979 to 1982, with the tracks being listed in chronological order. The main exception is the track "Thank You for the Music", which, despite being written and recorded in 1977, was in fact released as a single in 1983 after the band had split up. It appears on disc two, along with two bonus tracks, "Ring Ring", and "Voulez-Vous". The Australian version of The Definitive Collection adds a further two bonus tracks: "Rock Me" and "Hasta Mañana". The 1974 remix of "Ring Ring" is the first appearance on CD of this version mastered from the original master tape, after the UK single master tapes had been returned to Polar Music by the former UK licensees, Epic Records. The track's previous appearance on CD, in a 1999 singles boxed set, was mastered from a vinyl single.

"Waterloo" is a song recorded by Swedish pop group ABBA, with music composed by Benny Andersson and Björn Ulvaeus and lyrics written by Stikkan Anderson. It is first single of the group's second album of the same name, and their first under the Atlantic label in the United States. This was also the first single to be credited to the group performing under the name ABBA. The title and lyrics reference the 1815 Battle of Waterloo, and use it as a metaphor for a romantic relationship. The Swedish version of the single was backed with the Swedish version of "Honey, Honey", while the English version featured "Watch Out" on the B-side.