The song becomes his sixth No. 1 on the radio airplay tally, pulling him even with Bruno Mars for the most leaders among males
Justin Timberlake ties the record for the most No. 1s (six) by a male on Billboard's Nielsen BDS-based Pop Songs radio airplay chart (which launched the week of Oct. 3, 1992), as "Mirrors" rises 2-1. He equals the sum of Bruno Mars, who tallied his sixth No. 1 last month with "When I Was Your Man." (Mars, meanwhile, debuts at No. 29 with his new single "Treasure," which he performed last night to open the Billboard Music Awards; all charts will be refreshed Thursday (May 23) on Billboard.com.)
SOURCE http://www.billboard.com/articles/columns/chart-beat/1562979/justin-timberlakes-mirrors-tops-pop-songs