All of their fans are equal. Whoever puts their name on this answer isn't being generous because every fan is 1D's number one fan :)
Haven-hall-Williams totally is !
They do not have one.
they love all their fans
mereana in new zealand in Rotorua she is crowned the hugest fan ever
By sucking balls
Sian marie faith boland is their biggest fan. she especially loves Harry Styles:-)
A number one Jonas fan is not known at this time. There are many Jonas fans that claim to be the number one Jonas brothers fan. A girl name La'Tondra is the number one fan for the Jonas Brothers
Being a homosexual
Number One Fan - band - ended in 2005.
Number One Fan - band - was created in 2000.
2019
Her number one fan is definitely Amanda Madison O'Connor she is truly the biggest fan