Kurt Cobain committed suicide more than 20 years ago - but bizarre footage has prompted outrageous speculation he could still be alive.

The Nirvana frontman died at the age of 27 on April 5, 1994, but fans have been baffled by a clip of singer Ramiro Saavedra performing one of the iconic grunge group's biggest hits.

The star bares a remarkable resemblance to the pioneering late musician, and sounds exactly like the original as he belts out Come As You Are for a show in April 2012.

(Image: Youtube) (Image: Youtube)

Fans have been sent into a frenzy over the footage, with some people even taking it as evidence Cobain didn't die after all.

After the video resurfaced online this week, one fan wrote: "OMG Kurt Cobain from Nirvana is alive!"

However, not everyone was convinced by the rumours Cobain was back from the dead - and despite the eerie likeness, there were some tell tale signs.

(Image: Youtube) (Image: FilmMagic)

The most obvious one - besides the star's tragic death over two decades ago - is that the impersonator was playing guitar right handed, while the Nirvana man was left handed.

One fan wrote: "Just watch this video, it's obviously not real but I know you'll appreciate how alike he is!!!! (sic)"

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It comes after a YouTube video claimed to prove that legendary rapper Tupac Shakur is alive and well in Cuba .

The video, which has more than 1.3 million views, includes a selfie of a man wearing a bandanna who bears an uncanny resemblance to the fallen hip hop star.

It is claimed the man is "Tupac guys 100% same eyebrows and lips".