Hozier's 'Arsonist's Lullabye' Breaks Shazam Record After 'Walking Dead' Synch

Irish artist Hozier (via Facebook)

The song, featured in the TV series' March 6 episode, was tagged on Shazam 195,000 times afterward.

When Hozier's "Arsonist's Lullabye" played in the March 6 episode of AMC's hit The Walking Dead, it quickly grabbed the attention of viewers with smartphones, who took to the music identification app Shazam to discover what song was emanating from their TVs.

In fact, so many people used the app to find out the song's title that, according to Shazam, it broke an app-wide record for most tags for a TV song synch: more than 195,000 individual global queries for the tune during and after the episode aired, as of last Thursday (March 10).

Of course, the song's inclusion in the episode, the 12th of its sixth season (titled "Not Tomorrow Yet"), doesn't come as a significant shock. "Lullabye" was used in a season 6 trailer that premiered last July.

Sure enough, consumers have responded. The song, from the deluxe version of the Irish singer-songwriter's self-titled debut album, saw significant sales gains following the episode's premiere. In all, the track sold 9,000 digital downloads in the week ending March 11, a 3,000 percent gain from the previous week, and the song's best overall sales week by far -- its prior weekly peak being 2,000 nearly a year before (in the tracking week ending March 29, 2015), according to Nielsen Music.

"Lullabye" leaps onto multiple Billboard charts (dated March 26), including Rock Digital Songs and Alternative Digital Songs (both at No. 10), and Hot Rock Songs (No. 25). On the latter, 81 percent of its chart points (as the chart encompasses sales, radio airplay and streaming metrics) were via sales.

The track is an early contender for the March THR's Top TV Songs chart, which each month measures the impact of songs featured in TV shows based on amount of Shazam tags, along with individual digital sales and domestic streams. For the February chart, Lord Huron's "Fool for Love," featured in HBO's Girls, ranked at No. 1.