Katy Perry is a worldwide artist and has been in the music industry longer than JLS, so at the moment, she is more successful. But in the UK, JLS have had more number 1s, so JLS are more successful than Katy Perry in the UK only.
5 number 1s so far
they have had 5 UK Number 1s, 9 UK Top Ten, 10 UK Top 40
JLS are very successful. They have had various number 1 hits and have won many awards.
6
3
5
5
All My Life, Everlong
how many number 1s did roxy music have
1- Number 1 feat. Tinchy Stryder
how many number 1s has ushe had ??