All new entries must be sourced. WP:LISTPEOPLE clearly says that "the person's membership in the list's group is established by reliable sources." As you didn't provide any source (you simply put it back without any reference) then I cancelled your addition. And of course, I imagine you didn't see the huge tag at the top of this article, did you ? This biographical list needs additional citations for verification. See also WP:BURDEN  I'm not here to look for references for you. It's up to you to use references within this list to prove an artist is actually an indie rock artist.