This is my rating of singles only and is based on my opinion please comment below yours.Cannonball,Word Up,RLR is included .

18 Word Up
17 Love Me Like U
16 No More Sad Songs
15 Touch
14 Hair
13 RLR
12 Cannonball
11 How ya doin
10 DNA
9 Shout Out To My Ex
8 Black Magic
7 Secret Love Song
6 Wings
5 Move
4 Salute
3 Power
2 Change Your Life
1 Little Me (My favorite song ever)❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️
All their singles are great and this is my personal opinion.