Multimillionaire worth $45 million
Still just 23 years old, the amateur film-maker turned media boss is worth more than £8m, and counts famous entrepreneur Sir Richard Branson as one of his friends.
Jamal is the owner of SBTV, a broadcasting company that makes videos - typically music videos featuring rap and pop music stars - and puts them up on YouTube.
Attracting millions of hits, the business continues to make a fortune by taking a percentage of YouTube's advertising revenues for adverts that are linked to its videos.
It is not a bad living for a young man who got into film-making after his parents gave him a basic video camera as a Christmas present when he was 15, and someone who by his own admission has no formal training.