The tune is the latest leader on Mainstream Rock Airplay. Dayseeker Rob McCoy/Courtesy Spinefarm Trending on Billboard Dayseeker rules a Billboard chart for the first time, topping the May 9-dated Mainstream Rock Airplay survey with “Crawl Back to My Coffin.” The group reigns with its fifth song on the tally. It first made the list in 2022 when “Without Me” debuted at No. 37 that December, eventually peaking at No. 20 in early 2023. Dayseeker’s previous best before “Coffin” was the No. 7-peaking “Pale Moonlight,” the first of its two top 10s, last year. Dayseeker, formed in 2012 in California, first appeared on any Billboard chart when Origin reached Heatseekers Albums in 2015. It made its first Billboard 200 appearance last year when Creature in the Black Night bowed at No. 79. “Crawl Back to My Coffin” is the latter set’s second single. Explore See latest videos, charts and news The band is the fifth act to reign on Mainstream Rock Airplay for the first time in 2026, via three songs.…