KSI has conquered the online realm as well as a host of opponents in the boxing ring.
The celebrity prizefighter proved his pull over youngsters after turning his energy drink into a multi-million-pound business empire.
The face of the viral energy drink Prime, which Brits fight each other for in supermarkets, is rumoured to be worth a whopping £20million.
KSI, real name Olajide Olatunji, teamed up with former boxing rival Logan Paul for the drinks venture that is at the centre of a global craze.
It's not bad for a lad who rose to fame by posting gaming videos to YouTube from his parent's house.
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But the rapper has faced his fair share of backlash over the years too - like when he asked women at a gaming conference in 2013 what STIs they have.
And many said pulling his "rape face", a stunt he would regularly perform in his videos, trivialised sexual assault.
Yet the social media phenomenon, who boasts 24million subscribers, has managed to reinvent himself after apologising for his past actions.
After a streak of boxing wins and his success with his YouTube group Sidemen, it's no wonder KSI wanted to treat himself to a fleet of eye-popping motors.
The Down Like That rapper, who has collaborated with the likes of Rick Ross and Lil Baby, has to ride around in style.
So he splashed out some of his riches on a specialised £280k Lamborghini Aventador in 2014, that's been dubbed his "pride and joy."
The stunning Italian sportscar was wrapped celebrity customiser Yiannimize in an eyecatching purple hue.
The design also revealed KSI is clearly a fan of sci-fi film Tron, because he had his supercar modified twice with Tron-inspired lines.
First, it was red, before he switched it to the notorious purple with orange lines.
He even released a track titled Lamborghini in March 2015, paying tribute to his beloved motor and making it the star of the video shoot.
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Rumours previously circulated that KSI had crashed the Lambo, and moved onto another car.
But reports suggest he flogged the incredible vehicle at a loss two years after its music vid debut.
KSI didn't lose any sleep over it though - as he still has his Porsche 718 Boxster to whizz around in, which he bought in April 2019.
The lavish motor, which carries a price tag starting at around £65k, boasts a drop-top roof and a top speed of 171mph.
And just to make sure everyone knows who is behind-the-wheel, KSI added a personalised licence plate which reads "K51 FLY".
He also impressed his army of fans with his next swanky addition to his garage - a £60,000 Porsche Cayenne.
The YouTuber flaunted the bespoke car in a series of Snapchat stories - but hasn't shared any snaps showing off the exterior.
The Cayenne is the more luxurious of Porsche's SUVs and faster boasting a 3.0L Turbo V6 engine.
But KSI has also hinted he has an even more exclusive motor stashed away... the luxury Rolls-Royce Wraith.
The £250,000 car oozes opulence, as it should when it will set you back a whopping £250,000.
Although he hasn't specifically announced that he purchased one, he's been seen in LA countless times driving the Wraith.
The Sidemen founder also shared a snap of himself posing on the bonnet of an exquisite burnt orange and grey model.
It's powered by a 6.6-litre twin-turbocharged V12 engine and can get from zero to 60mph in just 4.4 seconds.
KSI is also known for splurging his riches on jewellery as he is quite the avid collector.
The jewel in the crown of his swag is a £390k custom diamond necklace, featuring Beerus from the Dragon Ball Z series.
The 18k gold shining medallion has around 2,000 stones gems including sapphires and yellow diamonds.
The boxer also reportedly owns a £10 million property empire after making savvy investments over the years.
Discussing his wealth, KSI, which stands for 'Knowledge, Strength, Integrity', told The Guardian "money gravitates towards me".
“I’m in a position now where I don’t have to worry about that side of things", he added.
Although he didn't become a doctor like his parents initially wanted, KSI certainly became a success.
