How did JLS become a group are you asking? Well they entered X Factor in 2008. They came second but still became famous. I don't know how they became a group before X factor. Because they felt that way so.
JLS formed together as a group in summer 2007
there is 4 jls members in the band
NO
marvin
No
Aston Merrygold
Aston
oritse
Oritse Williams
oritse
yes
They come from the x factor