50. Rita Ora - I Will Never Let You Down
49. Lucy Hale - You Sound Good To Me
48. Bea Miller - Young Blood
47. Justin Timberlake - Not a Bad Thing
46. Fergie - L.A.Love (la la)
45. Megan Nicole - Electrified
44. Afrojack f. Wrabel - Ten Feet Tall
43. MKTO - American Dream
42. Enrique Iglesias - Bailando
41. Coldplay - A Sky Full of Stars
40. American Authors - Best Day of My Life
39. Sabrina Carpenter - Can't Blame a Girl For Trying
38. Before You Exit - Dangerous
37. The Vamps - Wild Heart
36. Nick Jonas - Jealous
35. A Great Big World f. Christina Aguilera - Say Something
34. Maroon 5 - Maps
33. Paramore - Ain't It Fun
32. Hilary Duff - All About You
31. Rixton - Me and My Broken Heart
30. Ingrid Michaelson - Girls Chase Boys
29. Shakira - Empire
28. Echosmith - Cool Kids
27. R5 - Heart Made Up On You
26. Shawn Mendes - Life of the Party
25. Calvin Harris - Summer
24. Becky G f. Pitbull - Can't Get Enough
23. 5 Seconds of Summer - Amnesia
22. One Direction - Steal My Girl
21. Ylvis - The Fox
20. Demi Lovato f. Cher Lloyd - Really Don't Care
19. Bella Thorne - Call It Whatever
18. One Direction - Story of My Life
17. 5 Seconds of Summer - She Looks So Perfect
16. Austin Mahone f. Pitbull - Mmm Yeah
15. Ariana Grande f. Zedd - Break Free
14. Becky G - Shower
13. MAGIC! - Rude
12. The Chainsmokers - #SELFIE
11. Charli XCX - Boom Clap
10. OneRepublic - Counting Stars
9. One Direction - You & 1
8. Fifth Harmony - BO$$
7. Katy Perry f. Juicy J - Dark Horse
6. Pharrell Williams - Happy
5. R5 - I (Can't) Forget About You
4. Meghan Trainor - All About That Bass
3. Demi Lovato - Let It Go
2. Taylor Swift - Shake It Off
1. Ariana Grande f. Iggy Azalea - Problem
http://music.disney.com/radio-disney-top-50
Most likely their most mainstream list in awhile