10,000 Hours

The song is set in the key of B-flat major with a tempo of 88-92 beats per minute.^[7] The track was described by Billboard as "mid-tempo".^[3]

On September 29, Dan + Shay began teasing on social media that a track was arriving on October 4. They, as well as Justin Bieber, revealed the collaboration on October 2.^[3]

"10,000 Hours" debuted at number four on the US Billboard Hot 100 which is the first country song to debut in the top ten since 2012. This is also Dan + Shay's first top ten hit in the US and Bieber's 16th.^[5] On the Country Airplay chart, it is the duo's seventh number one and Bieber's first. In its first full week of tracking, it received 33.3 million streams, and became the highest-charting non-holiday country song in the history of the streaming chart at number three. It also sold 53,000 downloads in first week, and it was the number one song on the Hot Country Songs chart.^[8] It sold a further 17,000 copies in the second week.^[9] It was No. 1 for 21 weeks on the Hot Country Songs chart, the fourth longest reign in the chart history.^[10] It was certified Gold by the RIAA on December 10, 2019, and Platinum on January 16, 2020, later being certified quadruple platinum in 2021.^[11] It has sold 256,000 copies in the United States as of March 2020.^[12]

On November 27, 2019, a piano version arrived of the track that was called as the wedding version.^[13] Dan + Shay and Justin Bieber switched parts in the song as well, but the lyrics are the same.^[14]

Credits adapted from Tidal.^[15]