A PR firm by the name of Sachs Media Group has imagined what rock stars such as Jimi Hendrix and Kurt Cobain would like today had they not died young.

Their Rock and Roll Heaven series has images of various stars as they could appear today.

We've picked a few for you to look at, but have their 'befores' too so you can compare.

Elvis Presley

Kurt Cobain

Janis Joplin

Jimi Hendrix