ICLG's Team Marella will sit in the #1 spot for a fourth week with Billie Eilish's "BIRDS OF A FEATHER" (Darkroom/Interscope) while Lady Gaga & Bruno Mars' "Die With a Smile" joins the Top 10 and looks to be the Greatest Gainer of the week. RCA's Rothschild squad moves Myles Smith's "Stargazing" to the Top 15, and debuting on the chart will be Katy Perry's "I'm His, He's Mine" f/Doechii (Capitol).