Roberts, who penned this weekend's episode 'The Lodger', had told Doctor Who Magazine that he wrote another story for the programme after he had a meeting with the then recently-appointed showrunner Steven Moffat.
At the time, he quipped that the discarded script "might end up on screen one day, or as an audio play in 2030, guest starring Lady GaGa, who will have fallen on hard times".
Roberts told DS: "I know what Digital Spy is like! You managed to send that Lady GaGa thing round the world. The Daily Star misquoted me as it was a slow day in their office, and now it's in the New York Post! Never mind."
'The Lodger' airs this Saturday at 6.45pm on BBC One.
> Gallery: 'Doctor Who - The Lodger'