"La La La" is a single 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 the deluxe version of Smith's debut album In the Lonely Hour. The track reached number one in 26 countries, including on the UK Singles Chart.

At its time of release it was confirmed by the Official Charts Company as the fastest selling single of 2013 in the UK. By the end of 2013, "La La La" was the sixth fastest-selling single of the year in the UK, selling 145,000 copies in the first week. This song is used as the theme song for the film The Internship.

According to Naughty Boy, "La La La" was conceived from experiences similar to the song "Don't Speak" by No Doubt, which "came from something [he] felt". He states that, "It was just before everything popped up and she was somebody I neglected while I was trying to find me. When I found me, she found it best to neglect me. It's cool... Covering my ears like a kid and saying, 'La. La. La.' It's the man-kid in me."

"La La La" was written by Khan, Jonny Coffer, Al-Hakam El Kaubaisy, Frobisher Mbabazi, James Murray, Jimmy Napes, Mustafa Omer, and Sam Smith. Although Naughty Boy originally intended to write the song with Emeli Sandé, she was on tour at the time, and he wrote it with Sam Smith instead. Naughty Boy said "It just had to be Sam because where it went from there is perfect.” Naughty Boy and Komi produced the track, with co-production handled by Mojam. The song was produced using Logic Pro, FL Studio 11 and Reason. It was recorded and mixed at Cabana Studios (Ealing Studios) in Ealing, West London, and mastered by Stuart Hawkes at Metropolis Mastering Studios in London, UK. The song was finished in three hours, and was the last done for Hotel Cabana.

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