The girlband have previously released new versions of others' hits including 'Walk This Way', 'Jump', 'I Think We're Alone Now' and 'I'll Stand By You'.
However, Cole believes that they're not worth the bother anymore because they can never improve on the originals.
She told the Daily Star: "There’s not one single cover on our new album. We don’t need to do them any more.
"You get fed up of it, and so do the fans. You can never better the original."