9. Nico & Vinz "Am I Wrong" 8. Clean Bandit Featuring Jess Glynne "Rather Be" 7. DJ Snake & Lil Jon "Turn Down For What" 6. Mr Probz "Waves (Robin Schulz Remix)" 5. Ariana Grande Featuring Iggy Azalea "Problem" 4. Iggy Azalea Featuring Charli XCX "Fancy" 3. Pharrell Williams "Happy" 2. Calvin Harris "Summer" 1. John Legend "All Of Me"