Team Def Jam, led by the indomitable Rick Sackheim, scores 159 adds on impact for Major Lazer's "Cold Water" f/Justin Bieber & MØ (Mad Decent) to easily lock the #1 Most Added at T40 this week. Def Jam also gathered 32 adds on impact for Alessia Cara's "Scars To Your Beautiful," which comes in at #2. Republic puts three in the Top 10 this week, pulling in 43 adds on Hailee Steinfeld & Grey's "Starving" f/ Zedd, 26 more stations on Drake f/Rihanna's "Too Good" (YMCMB) and 22 on Kungs vs. Cookin' on 3 Burners' "This Girl" (Casablanca). Capitol secured 37 new adds for Katy Perry's "Rise". RCA added 29 stations to the tally for Britney Spears f/G-Eazy's "Make Me." And rounding out the Top 10 is Warner Bros. with Lukas Graham's "Mama Said" along with Island/Republic's Mike Posner, who pulled in 14 adds for "Be As You Are."