[$10 prize] Mini Crypto Challenge #3 - old rock edition

Paging all code breakers, puzzle fans, sleuths, hackers, smart-asses, wise guys and other smart alecks!

Part three of the Mini Crypto Challenge — inspired by @timsaid's Steemit Crypto Challenge — is finally here (with apologies for the delay).

Mini Crypto Challenge #3

Today's challenge is very straight forward. My badly written poem ends in a question that needs to be answered. Answer it.

The rules:

• The first person to post the correct solution as a comment to this post is the winner of $10 SBD
• Use any means necessary to decipher the hints and find the solution
• Posting clues, hunches and wild guesses is encouraged and will be rewarded
• Liquid reward on this post goes directly to the prize pool of the next challenge
• Have fun!

The challenge

My journey starts thirty five years to the day
Since Anarchy spread all throughout UK

Three-and-a-half-hundred miles I was launched
To where David Bowie's arachnids had spawned

The day I arrived I remember quite well
Sixteen years after Gabba Hey's farewell

My purpose to find if there's blue in this red
Was Marilyn right? Is this Rock really Dead?

And though made undone by what Jagger can't get
I'm sorry my name may have murdered your cat

Each time I complete my ellipse 'round the Sun
Tell me what tune do I no longer hum?

The hints

None, this time.