Your question cannot be answered with the information currently available.
"More Famous" is too idiomatic to provide an adequate answer without poll data from various areas & age groups, perhaps even from different socio economic groups.
Without any data of this sort there is no way to really determine which person is more widely known to the general populace therefore any answer would really be speculation, opinion and/or conjecture from the individual who answered.
Both Guns N' Roses and Johnny Depp are equally famous in their own fields of entertainment, Guns N' Roses for music and Johnny Depp in movies.
My dad is weally better tha both.l;Hes famos.
Adele
adele
Adele
Undoubtedly J.K Rowling is much more famous than Adele
adele obvious
Johnny Depp.
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp.
johnny depp
Totally Johnny Depp.