Rapper Lupe Fiasco beats Street Fighter legend Daigo Umehara at his own game - CNET

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If you're a fighting game buff, you've likely seen this footage of Daigo Umehara parrying his way to a dazzling comeback in Street Fighter III at the Evo 2004 fighting game touament.

Daigo is renowned in the e-sports scene as one of the world's best Street Fighter players, known in Japan as "the god of 2D fighting games", but on Monday night met an opponent he couldn't overcome -- rapper Lupe Fiasco.

The two squared off in a Street Fighter V contest, letting the world watch via livestream on Twitch. Shockingly, the famed hip hop artist clinched an upset victory, beating Daigo 3-2.

Lupe is known to be a big gamer, sometimes making videogame references in his music, but it seemed like a foregone conclusion that he'd lose to the experienced Daigo. Lupe himself tweeted back in January that it would be an honour to lose to the fighting game pro.

Their showdown, put together by arcade joypad makers MadCatz, is the latest example of e-sports' increasing mainstream appeal. Other such indications are the popularity of Twitch, a widely used game streaming platform, and the massive $18.5 million prize pool that was at stake at last year's DOTA 2 Inteational touament, which culminated at the KeyArena Centre in Seattle, Washington.