Carly Rae Jepsen has announced the pre-order for her new album and has some signed CD options available. It does look like they’re art cards but at the price it is still worth it to me. She may not be super mainstream anymore but she has an insanely diehard fanbase.
There's also these signed prints still which have a much nicer signature than the art cards (the pictures just show CRJ but someone bought one on here and it was a nice full signature)