I agree about speaking in public, but (speaking as a teacher who has to speak in public quite a lot!) it gets a lot better with practice, and the stage fright
disappears with time. Just as well, eh? Do you think that Chris Martin is an unusual person because of fame? Or another reason?
By-the-way, have you, or anyone else ever met a famous person? (I have actually taught a famous person, but you'll have to guess who it is is you want to know - I'll give you 20 yes/no questions!)