The Britain's Got Talent duo said that they are looking forward to the spinoff series from US hit Jersey Shore because it would be a fun reminder of their hometown.
"I'm looking forward to it actually, because there will be lots of places that we know and lots of people that we know out and about," said Dec.
"I think it's going to be amazing. I think it's going to be brilliant."
Geordie Shore starts on Tuesday, May 24 on MTV.
The TV double act were speaking at the launch of ITV1 and Simon Cowell's new gameshow Red or Black?. The programme, which will offer people the chance of winning a million pounds through nothing but luck and chance, will take place this summer at Wembley.
UK residents can apply now at www.itv.com/redorblack.
> Geordie Shore: Meet the cast
Watch a video preview of Geordie Shore below: