Selena and Fergie

Taylor Swift "Blank Space"
Magic! & Wyclef Jean "Rude"
Sam Smith & A$AP Rocky "I'm Not the Only One"
Iggy Azalea & Charli XCX & MØ "Fancy" & "Beg for It"
Ariana Grande & The Weeknd "Problem" & "Break Free" & "Love Me Harder"
Pitbull & Ne-Yo "Don't Stop the Party" & "Fireball" & "Time Of Our Lives"
Nicki Minaj & Skylar Grey "Bed of Lies"
Fergie & YG "L.A. Love (La La)"
Jessie J & Ariana Grande & Nicki Minaj "Bang Bang"

For me Top 3 was: Charli, Lorde and 5SOS. And I liked Selena's and JLO's performance as well.

Wow everyone liked selena performance. Keep it up girl.