"I Know There's Gonna Be (Good Times)" is a song by English music producer Jamie xx, with featured vocals from American rapper Young Thug and Jamaican musician Popcaan. The song was released as the third single from Jamie xx's debut studio album, In Colour, on 22 May 2015 in the UK and 28 August in the U.S. The official music video for the song was uploaded to YouTube on 28 September 2015. "I Know There's Gonna Be (Good Times)" peaked at number 115 on the UK Singles Chart and number 90 on the Australian ARIA Charts. It also appears on the soundtrack for the video game NBA Live 16 and NBA 2K17. English rapper Skepta's grime-influenced remix of the song made its debut on Drake's OVO Sound Radio on Apple Music's Beats 1 radio station.

In an interview with The Fader, Jamie Smith stated "I don't feel like I'm very good at making music, in terms of like the technical side of it—it's more like trying stuff out until something that I love happens. Sometimes I'll be quite good at the first 10 seconds of a song, then I'm lost. "I Know There's Gonna Be (Good Times)" was like that."

The song started with a sample from "Good Times" from The Persuasions. "It's an a cappella record where they are doing barbershop-style backing, and there's a beautiful soul song over the top," Smith stated. This record was found by Smith while he was living in Detroit and "had time to kill" before his tour started. "The day after I bought it, I immediately got that feeling and wanted to get to work right away on making something out of it." While "messing around" with the track for a little while, he then went to New York City and was listening to Hot 97 driving over a bridge; this experience was described by him as "a real catalyst in terms of what direction [he] wanted to take the song." "I was listening to hip-hop radio all the time while I was there; and I thought I’d have a go at trying to make a song that would get played on one of those kind of stations."

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