The song is the first in the airplay chart's 29-year history to rule for 20 weeks.

Portugal. The Man's "Feel It Still" rewrites the record for the most weeks spent at No. 1 on Billboard's Alternative Songs airplay chart, as it logs its 20th week atop the ranking (dated Dec. 9).

The track, which became the Alaska-formed, Oregon-based band's first No. 1 on the chart dated July 8, makes history with its third week in a row at No. 1 after a 17-week reign that was interrupted by a three-week run at the summit by Imagine Dragons' "Thunder."

The new longest-running No. 1 in the chart's 29-year history breaks a tie with Muse's "Madness," which ruled for 19 weeks in 2012 and 2013.

Here's a look at the songs that have topped Alternative Songs the longest since the chart launched on Sept. 10, 1988.

Most Weeks at No. 1 on Alternative Songs

20, "Feel It Still," Portugal. The Man, 2017

19, "Madness," Muse, 2012-13

18, "The Pretender," Foo Fighters, 2007

17, "Uprising," Muse, 2009-10

16, "Boulevard of Broken Dreams," Green Day, 2004-05

16, "It's Been Awhile," Staind, 2001

16, "Scar Tissue," Red Hot Chili Peppers, 1999

The resume of airplay coronations for "Feel" encompasses, in addition to its 20-week (and counting) command atop Alternative Songs: 17 weeks at No. 1 on the all-rock-genre Rock Airplay chart, 11 on Adult Alternative Songs, five each on the all-genre Radio Songs chart and Dance/Mix Show Airplay (as it holds atop the current, Dec. 9-dated latter list), four on Adult Pop Songs and three on Pop Songs.

Additionally, the track ruled Hot Rock Songs, which blends airplay, streaming and sales data, for five frames.

Concurrently, "Feel" follow-up single "Live in the Moment" continues to ascend, leaping 18-12 on Adult Alternative Songs, 31-20 on Rock Airplay (2.7 million audience impressions, up 37 percent, marking the chart's greatest gain, according to Nielsen Music) and bulleting at No. 21 on Alternative Songs.