It will be a tight race between YMCM/Republic artist Nicki Minaj with "Truffle Butter" and RCA's Chris Brown & Tyga "Ayo" for the #1 spot this week, as less than 100 spins separates them. Roc Nation's Rihanna/Kanye/Paul McCartney "FourFiveSeconds" moves into the top 5 this week. Kanye West's "All Day" and Beluga Heights/WB's Jason Derulo "Want To Want Me" each have massive spin increases. Syco/Epic's Fifth Harmony "Worth It" will make its debut this week.