It's so annoying when people go "Lady Gaga didn't invent mermaids!" It's besides the point.
Imagine if Chris Brown wore a speedo to the MTV VMAs, then Bieber wore one to the Grammys. Just because Chris Brown obviously didn't invent a speedo, it doesn't mean Bieber didn't get the idea from him. People are so stupid.
(PS I really want to see them both in speedos now

)