No its an older one. Its from "The Smell of Our Own". Ban Marriage is very cheery too. Both here (scroll down to the album clips):
http://www.thehiddencameras.com/html/music.html
Mariah Carey - All I Want For Christmas Is You.
Well at this time of year anyway. I need to consult my full music collection for others. Pretty sure I've got a feel good playlist stored somewhere.
Sorry, forgot to specify: no Mariah Carey.
Or songs that have featured on previous Teh albums.