Most Doctor Who fans weren't expecting to see David Tennant as The Doctor until November, but now it's been revealed he's going to star on CBBC first!
And it's not just a brief return either - The Doctor will play a big role in a two-part story of The Sarah Jane Adventures.
The third series of the Sarah Jane Adventures will be back on the CBBC Channel for 12 weeks from September.
Doctor Who boss Russell T Davies said: "Viewers thought they may have to wait until November for the next full episode of Doctor Who, but this is an extra special treat.
"And it's not just a cameo from David - this is a full on appearance for The Doctor as he and Sarah Jane face their biggest threat ever." The series will also see Sarah Jane, K-9, Clyde, Luke, Rani and Mr Smith battle a haunted house and the return of the Judoon.
And it's not just a brief return either - The Doctor will play a big role in a two-part story of The Sarah Jane Adventures.
The third series of the Sarah Jane Adventures will be back on the CBBC Channel for 12 weeks from September.
Doctor Who boss Russell T Davies said: "Viewers thought they may have to wait until November for the next full episode of Doctor Who, but this is an extra special treat.
"And it's not just a cameo from David - this is a full on appearance for The Doctor as he and Sarah Jane face their biggest threat ever." The series will also see Sarah Jane, K-9, Clyde, Luke, Rani and Mr Smith battle a haunted house and the return of the Judoon.