Good guess, but no. Going back to the first clue, the person is referring to themselves. Furthermore, the moon in question orbits the largest planet in our Solar System.
I've been involved in a lot of things, including Eurovision. I'm an actor, I'm a writer, I'm a producer, but I'm not a joker. I even spent 4 months learning Swedish, so maybe I could've been my country's spokesperson this year. What a shame we withdrew.
Why are they all so bleedin' obvious once someone has got them (This is obviously correct even though it hasn't been confirmed.)