The BBC have today confirmed that Billie will be returning to Doctor Who.
She will star in three episodes of the sci-fi drama, reprising her role as the Doctor's companion, Rose Tyler.
Rose's return will mean the Doctor has three assistants in next year's series - Donna, played by Catherine Tate, and Freema Agyeman as Martha.
The new series begins in March and will run for 13 episodes. There will be three special editions in 2009 before the show takes a break until 2010.
A separate show based on Rose had been planned by writer and series producer Russell T Davies, but was scrapped when Davies decided the programme was "a spin-off too far".
Sweet! I actually dislike Donna not really, but I loved Rose and I'm glad she will be back soon!