Toni Braxton’s son signs modeling contract. It looks like Toni Braxton’s 15 year old son Diezel is getting into show business, not as a singer but on the modeling side of the business. Diezel has just signed a contract with the prestigious Wihelmina Agency. Diezel had been taking pictures of himself and posting them on Instagram and it looks like it paid off. Toni was right there with her son and posted her congrats on Instagram too!