Girl came up to me at Barcade the other day and said Hi and then asked if she knew me / thought I was the singer of this band she knows

I have a bit of social anxiety and I’m not too good at this but was she hitting on me or wanted to talk to me? Or did she legit think that? It just seemed kind of strange and I’ve been feeling bad for the past few days. Is this like a normal pickup line to talk to someone?