Hot Chelle Rae Copying Howling Bells?

Lotsa folks sayin’ Hot Chelle Rae copied Howling Bells for their latest album cover.
So okay. Let’s just point out the huge similarities here, shall we?
Howling Bells totally used Andy Warhol genius for their album…
And then OMG! Hot Chelle Rae totally used Andy’s pop-art too!!!
So maybe Hot Chelle Rae copied Howling Bells? Or MAYBE they both copied Andy Warhol!
Thoughts?