Neither, she does her own thing but you don't see any current girl working with her producers or copying her image, the only one who did that was Nicki Minaj but she quickly stopped after the GP realized Gaga was a fad
how are you about to say gaga is a trend follower she is definitely a trendsetter. the only reason your fave did anything avant-garde is because gaga made it popular, such as nicki's getup at the 2011 VMA's, where gaga turned heads for showing up dressed as a male