Tool scored its first Number One song on the Active Rock radio airplay chart in 13 years this week with “Fear Inoculum,” the title track from the band’s newly released fifth studio LP.

The song is also the band’s fourth career chart-topper at rock radio, following “The Pot,” “Vicarious” and “Schism.” “Fear Inoculum” also became the longest song to ever land in the Billboard Hot 100. The cut has a running time of 10 minutes and 21 seconds, a full 24 seconds longer than the previous record holder, David Bowie‘s “Blackstar.”

Tool kicked off its fall North American tour on Sunday (October 13th) with a headlining set at the Aftershock Festival in Sacramento, California. Among the highlights were the live debuts of “Fear Inoculum” and another new tune, “Pneuma.”

Drummer Danny Carey told us a while back how Tool approaches festivals: [“It’s this whole different vibe when you play at a festival. People have already had to go through so much, you know, especially if you’re headlining. By the time you’re on, you know, you don’t wanna just drive them into the ground, you know. I think in those cases less is more, so we’re happy just to play more rocking, straight ahead songs and not get too tedious ’cause it’s not that kind of an environment. We’ll save that for our own shows.”] SOUNDCUE (:20 OC: . . . our own shows.)

Tool released Fear Inoculum on August 30th. The quartet’s first LP since 2006 debuted at Number One on the Billboard 200 album chart, selling approximately 270,000 equivalent album units in its first week.