Linkin Park posts the first No. 1 debut in the 14-month history of the Rock Songs chart, as "The Catalyst" launches with 12.2 million audience impressions.

The cut eclipses the chart's previous highest-starting song, Pearl Jam's "The Fixer," which arrived at No. 2 a year ago this month.

Rock Songs premiered the week of June 20, 2009. The Nielsen BDS-based radio airplay survey measures the most-heard titles on more than 180 alternative, adult alternative and mainstream rock stations.

"The Catalyst" concurrently opens on the Alternative Songs chart at No. 3, marking the list's loftiest arrival since Linkin Park's own "What I've Done" bowed at No. 1 in April 2007.

"The Catalyst" is the first single from the band's fourth studio album, "A Thousand Suns," due Sept. 14.