Boateng opened his first studio in his early 20s, dressing the likes of Mick Jagger, Jimmy Paige and Spike Lee.
He then opened his Savile Row store - at the age of 28 he was the youngest to ever do so.
The burgeoning designer captivated London's fashion scene initially, but in 1998 he went bankrupt when an economic downturn in east Asia scuppered a major order.
Both his professional and personal life descended into disarray - in just 12 months an entire collection was stolen from his studio and his marriage broke down.
But the peacock strutted his way back. Boateng gradually rebuilt his business and in 2002 moved into bigger premises on Savile Row.
Since then, he has served as Givency's creative director for menswear, been awarded an OBE, designed staff uniforms for British Airways and branched out into womenswear.
While racking up professional and charitable commitments, Boateng was raising two children.
Now adults, Oscar and Emilia Boateng accompanied their father to the Met Gala, dressed in the suits that made their surname one of the most famous in contemporary British tailoring.
They are not, however, keen to follow their father into fashion design.
"I'm trying to slowly but surely seduce them into the fashion business," Boateng jokes.
"It is ultimately their decision to decide what they want from their life. If they find something they're passionate about in a way I have, I am happy."
And what is next for his own passion? Boateng might have a brain brimming with concepts, but he has a clear vision of where he wants his brand to go next.
"The future is expansion," he says, "raising capital to really, really push the brand globally".
"I think it's the moment in time - and it's the right moment."