Britney Spears Doll with MCD Musical Keychain This Musical Britney Spears Doll has a year 2000 Copyright and is in mint condition in its original sealed bag. Britney stands about 11.5 inches and is really well made. The likeness of the real Britney Spears is al so pretty remarkable. (Keep in mind she was a lot younger when this doll was made!) Musical Keychain Included. The doll also comes with an amazing keychain. It plays the entire recording of Britneys Oops I Did It Again. The Musical Britney Spears Doll is a great gift for any Britney Spears fan or collector of strange nostalgic dolls. Batteries are included