1
pitty
2
sia
3
katy perry
4
jessie j
5
Lady Gaga
6
ariana grande
7
MIKA
8
Gwen Stefani
9
avicii
10
Jasson Mraz
11
Taylor Swift
12
justin bieber
13
victoria justice
14
miley cyrus
15
ffifth harmony
16
hatsune miku
