It's the band's second leader from its album of the same name.
The song is Godsmack's ninth leader on the chart, which began in 1981, and second from its 2018 album of the same name. Previously, "Bulletproof," the No. 1 title on the year-end Mainstream Rock Songs list for 2018, ruled for five weeks beginning in May.
Godsmack's run of No. 1s dates to 2001, when "Awake" led for a week that February. Until 2018, the band had never notched multiple No. 1s in the same year (though it had, however, scored more than one No. 1 on a single album).