The rapper insisted that either he, Tulisa Contostavlos or Fazer will have huge success with their individual projects outside the band.
Dappy told Capital FM: "Obviously Tulisa's doing the X Factor thing and her own album. Fazer's doing the whole catwalk thing and his own production album.
"I'm like, 'Wow, these lot are flying too - we've got to keep up with each other'. One of us is going to go big, one of us is going to go nuts."
He added: "We've just got to make sure we can maintain. If Tulisa got massive it would be easy for me and Fazer to get lost in the drain."
Dappy recently claimed that if he reached number one with his new single 'Rockstar', he would collaborate with Rihanna on his next cut 'Dare To Dream'.
> N-Dubz will record another album, says Fazer
Watch the music video for Dappy's 'Rockstar' below: