Hello, Ruby Sunday

[daibhidc]

(Obvious filk is obvious. And I'd be very surprised if I were the first person to think of it.)

Coronation Street's where she came from,
Popped up on CIN, then was gone.
When will she be seen,
With Doctor 15?
No-one knows,
But Rusty, I suppose.

Hello, Ruby Sunday,
You're announced for Doctor Who,
Maybe we'll all see you someday,
After Tennant take two.