Sungha arranged and played 'Happy New Year' by ABBA.

"Happy New Year" is a popular song by Swedish pop group ABBA from their 1980 album Super Trouper. The song's working title was all the more festive and humorous; "Daddy Don't Get Drunk on Christmas Day". Although recorded in 1980, the song wasn't released as a single until in 1999 and charted in Sweden (#27), The Netherlands (#15), and Germany (#78), to promote the CD re-release of many of ABBA's singles.

"Felicidad" was the Spanish language version of the song. The single charted in the top 5 in Argentina. The song was also included on the South American versions of the Super Trouper album. Released in 1980 in Argentina, the single's B-side was the album's title track, "Super Trouper".

"Felicidad" was first released on CD as part of the 1994 Polydor U.S. compilation Más ABBA Oro, and in 1999 on the expanded re-release of ABBA Oro: Grandes Éxitos.

In 2008, it was released again in several countries, and charted in Denmark (#25), Norway (#11), and Sweden (#4). It re-entered the Sweden and Norway charts in 2009 at #5 in both charts