The track is the Canadian rockers' initial entry on the list, making them the first chart-topping rookie act since Bad Wolves last year.
The Glorious Sons ring in the new year with their first No. 1 on a U.S. Billboard chart, as "S.O.S. (Sawed Off Shotgun)" blasts its way to the top of the Mainstream Rock Songs airplay list dated Jan. 19.
"S.O.S." rises 2-1 to become the band's first leader on a tally powered by U.S. data after the Ontario-based act previously led charts in Canada.
The quintet reigns with its first entry on Mainstream Rock Songs, becoming the first act to lead the list with a maiden title since Bad Wolves, whose cover of The Cranberries' "Zombie" reached No. 1 in May 2018.