Justin Bieber on the Country Charts

Dan + Shay is an American country music duo composed of vocalists and songwriters Dan Smyers and Shay Mooney. 
And Justin Beiber teamed up with them for the country love song of your dreams... and it's slaying Billboard 100 and the country charts... Right after his own wedding to now Hailey Bieber (Baldwin) on the 28th September.

Billboard.com reports: 
"Bieber has now topped seven multi-metric song charts.
Dan + Shay and Justin Bieber's "10,000 Hours" roars from No. 40 to No. 1 on Billboard's airplay-, streaming- and sales-based Hot Country Songs chart (dated Oct. 19), following the collaboration's first full week of tracking.
The coronation is the third for country duo Dan + Shay (Dan Smyers and Shay Mooney) and the first for pop superstar Bieber. The song was written by Dan + Shay, Bieber, Jessie Jo Dillon, Jordan Reynolds and Jason "Poo Bear" Boyd and produced by Smyers.
"We wrote this song about our wives, and we're glad that it means as much to our fans as it does to us," Smyers tells Billboard. "The reaction has been incredible."
(Dan + Shay are co-managed by Jason Owen, and Bieber's manager Scooter Braun.)
Dan + Shay previously led Hot Country Songs with "Speechless," for 11 weeks starting in October 2018, followed by predecessor single "Tequila," which, helped by pop crossover airplay, topped the tally for a week this February.
The 40-1 flight for "Hours" marks the biggest jump to the penthouse since Jason Aldean's "Burnin' It Down" flew 42-1 in its second frame (also after its first full tracking week), beginning a 14-week reign.
On the all-genre Billboard Hot 100, "Hours" clocks in at No. 4, marking Dan + Shay's best rank; the pair reached a previous No. 21 high with "Tequila." Notably, "Hours" is the first song by a duo or group that primarily records country music ever to debut in the Hot 100's top five.
Bieber adds his 16th Hot 100 top 10 and first since "I Don't Care" (with Ed Sheeran), which debuted and peaked at No. 2 in May."
Whole article here: https://www.billboard.com/articles/business/chart-beat/8532901/10000-hours-no-1-hot-country-songs-chart