The collab conquers another airplay tally.

Marshmello and Bastille each notch their first No. 1 on Billboard's Pop Songs radio airplay chart, as "Happier" bounds 4-1 on the survey dated Nov. 17.

Masked DJ Marshmello had previously hit a No. 2 high on Pop Songs with "Friends," with Anne-Marie, in August. British alt band Bastille had hit a prior No. 3 high with its breakthrough single "Pompeii" in 2014.

The Pop Songs chart (which in 2017 celebrated its 25th anniversary) measures total weekly plays, as tabulated by Nielsen Music, among its reporting panel of 167 mainstream top 40 stations.

Pop Songs is the latest chart airplay that "Happier" has topped. It spends a fifth week at No. 1 on Dance/Mix Show Airplay, while a week ago, it reached No. 1 on Alternative Songs.

This week, "Happier" also climbs 9-8 on Adult Pop Songs and debuts at No. 34 on Adult Alternative Songs.

All charts will update tomorrow (Nov. 13) on Billboard.com.