"La La La" is a song released by British record producer Naughty Boy, featuring vocals from Sam Smith. It was released on 18 May 2013 as the second single from Naughty Boy's debut album Hotel Cabana (2013) and it appears on the deluxe version of Smith's debut album In the Lonely Hour (2014). The track reached number one on the music charts in 26 countries, including Italy, the Czech Republic, Russia and the United Kingdom. Upon its release, it was confirmed by the Official Charts Company as the fastest-selling single of 2013 in the UK. By the end of 2013, the song was the sixth fastest-selling single of the year in the UK, selling 145,000 copies in the first week.