The Britain's Got Talent judge makes her debut on E4 with a documentary style series.
The 8x30 minute series, which has the working title No Holden Back, sees Amanda go and live with her northern Nan, who will be played by a celebrity guest, and Amanda will be joined by other member of her and friends.
Amanda said: "I’m delighted that everyone is finally going to meet my nan, the apple never falls far from my tree and in this series she will certainly be keeping me on my toes."
A spokesperson for her nan, Myrtle, said “I have no comment, apart from I’m really hoping being on TV might mean I can finally meet my favourite young man, Ben Shephard.”
The eight-part series will available as a boxset on All 4 following the transmission of episode one of E4. Episodes will then be repeated on Channel 4.