Cheryl Cole, JLS and Take That are among the big stars performing on this year's Children in Need night.
Viewers can also expect a sneak preview of the Christmas Doctor Who and a pop star special of Strictly Come Dancing.
The night kicks off at 7pm on BBC One and events will be going on all over the country.
Organisers hope to smash last year's record total of £39million. Money raised goes to helping improve the lives of kids across the UK.
If you're a soap fan, then you can look forward to cast members from rivals EastEnders and Coronation Street putting their differences aside for a one-off episode!
JLS will be singing this year's Children in Need single, Love You More, which looks set to be number one on Sunday.