8 Maroon 5
10 Gavin DeGraw
11 Labrinth
12 Ella Eyre
14 Sheppard
17 Script
18 Nico & Vinz
19 U2
20 Maroon 5
21 Take That
22 Mary Lambert
24 Gwen Stefani
25 La Roux
27 Lorde
28 Nickelback
29 Weezer
30 Taylor Swift
31 Taylor Swift
32 Train
33 Rumer
34 Bea Miller
36 Mark Ronson
37 OK Go