"backing" - key terms from Wikipedia

added backing	vocals
backing
backing	an anchor
backing	band
backing	bands
backing	group
backing	paper
backing	plate
backing	store
backing	tracks
backing	up
backing	vocal
backing	vocalist
backing	vocals
backing	vocals and handclaps
backing	vocals guest
backing	vocals on a hard
backing	vocals on entire album
backing	vocals on keep talking
backing	vocals on sorrow
backing	vocals on time
backing	vocals on track
backing	vocals on tracks
backing	vox
contributed backing	vocals
financial backing
guitar and backing	vocals
lead and backing	vocals
madonna sings backing	vocals
moved to backing	vocals
provided backing	vocals
s backing	band
sinew backing
singing backing	vocals