The Top 3 Greatest Gainers this week at Top 40 are Interscope's Imagine Dragons, who join the Top 20 with "Enemy" f/JID, Arcane & League of Legends (KIDinaKORNER), Warner's Saweetie with "Closer" f/H.E.R. (ICY/RCA), which is now Top 25, and RCA's Latto with Top 10 bound "Big Energy.” Look for big action in the coming weeks with some big new tracks on the schedule to drop.