Tyra Banks
There's no doubt that former model Tyra Banks has crossed the line from model to being a business mogul. Tyra has created hit US TV show America's Next Top Model (which she also hosts), and The Tyra Banks Show, which won her an Emmy.
She has also co-created a series called True Beauty, alongside Ashton Kutcher, and has authored three books. She also has her own production company, Bankable Productions.
The model-turned-TV-personality, is one of seven women to have repeatedly ranked among the world's most influential people by Time magazine.