Rival of Oasis in the "Battle of Britpop” around 1995 (4)
I believe the answer is:
blur
(Other definitions for blur that I've seen before include "Britpop band - indistinct vision" , "Make or become indistinct" , "Hazy or indistinct representation" , "Unfocused image" , "Smudge - Britpop band" .)