For the second week in a row, Shawn Mendes & Camila Cabello's "I Know What You Did Last Summer" (Island/Republic) is the Most Added record at Top 40, pulling in 51 new stations. Justin Bieber's "Love Yourself" (RBMG/Def Jam) raked in 40 adds to land in second place. The Chainsmokers get 27 new stations this week for "Roses" (Distruptor/Columbia) while RCA puts 25 adds on "Drink You Away" by Justin Timberlake. Meanwhile, Beluga Heights/Warner Bros. adds 23 stations to Jason Derulo's "Get Ugly," Capitol gathers 17 on Tori Kelly's "Hollow" and Grand Hustle/Epic puts 12 on Travi$ Scott's "Antidote."