Judging by the sales of their albums and singles, I'd say millions.
Debarge, a sibling music group who were active between 1979 and 1989, released six albums. The names of some of these albums include "The Debarges," "All This Love," and "In a Special Way."
They have four full albums, 'All We Know Is Falling', 'Riot!', 'Brand New Eyes', and 'Paramore'(Self-Titled). They also have a live album&DVD called 'The Final Riot!'.
Only two (2) have been released.
Linkin Park has released nine Underground albums. They also have released five live albums and six studio albums.
3
They are currently are in 9 albums, including Hayley Williams in B.o.B's 'Airplanes', but they have released 7 albums by themselves.
Three - All We Know Is Falling, RIOT!, and Brand New Eyes
Juvenile has released eight albums. They have not been that successful.
There are many PsyOpus albums that have been released. PsyOpus has released three different albums. The names of the albums are "Odd Senses", "Ideas of Reference", and "Our Puzzling Encounters Considered".
Judging by the sales of their albums and singles, I'd say millions.
Paramore made 65 songs in total
Ensiferum have released 5 studio albums. They have also released a compilation which is made up of their first three demo albums. So in total they have released 6 albums including this compilation.
There have been many albums released by the band "Dropdead". Some of the albums released by the band "Dropdead" include "Coverage", "Dropdead Spirit", and "Dropdead".
There have been a total of two albums released by NeverShoutNever, but there have also been five EPs and nine singles ^^ (The two albums are 'What is love?' and 'Harmony')
they formed 2003 and released there first real album 2005
The Angelic Upstarts have released 12 studio albums, 7 live albums, 10 compilation albums and 1 DVD. They have also released 19 singles since they were founded.