Legendary rock band Metallica have earned their fourth consecutive No. 1 on Billboard’s Mainstream Rock Airplay chart, thanks to “Screaming Suicide.” “Screaming Suicide” rose to the top of the tally dated May 18. The song follows reigns for “Too Far Gone?”, “72 Seasons” and “Lux Æterna.” All four tracks are from 72 Seasons, Metallica’s 11th…… More