Dan + Shay are riding a wave of success after they released a collaboration with pop star Justin Bieber called "10,000 Hours" on Oct. 4.

The romantic tune debuts at No. 4 on Billboard's all-genre Hot 100 chart thanks to huge sales and considerable airplay. According to Billboard, "10,000 Hours" sold 53,000 downloads in its first week and allowed Dan + Shay to notch their first No. 1 on the Digital Song Sales chart. The song has been promoted to both pop and country radio formats.  In country, it drew a first-week audience of 19.6 million impressions, allowing it to reach No. 25 on the Country Airplay chart.

"10,000 Hours" gives Dan + Shay their highest-charting single on Billboard's Hot 100 chart, surpassing the No. 21 high of their smash hit "Tequila," which peaked in July 2018.

WATCH: Dan + Shay Explain How Justin Bieber Found Their New Song

The song also blasts from No. 40 to No. 1 on the Hot Country Songs chart, where Dan + Shay collect their third No. 1 single following their hits "Tequila" and "Speechless." Bieber earns his first No.1 single on the Hot Country Songs chart.

"10,000 Hours" also becomes the first song by a duo or group that primarily records country music to debut in the Billboard Hot 100's Top 5. It's the first country song to debut in the Top 10 of Billboard's Hot 100 since Taylor Swift released her single "Red," which debuted and peaked at the No. 6 position on the chart.

Dan + Shay show no signs of slowing down, either, as they recently announced a massive 2020 Arena Tour. Tickets for the tour are available on their official website.

We Never Would Have Thought These Artists Would Have Crossed Over!