Justin Bieber, by far. I've never even heard of Margarat Thatcher.
Margaret Thatcher
Margaret Thatcher
Margaret Thatcher is way more famous than Sonic. Margaret is cool.
That depends upon your definition of the word "famous". In my opinion, Margaret Thatcher is much more famous than Madonna.
Justin Bieber is more famous
Justin Bieber will never be famous...
Me, because I'm awesome!
Adele is famous Margaret Thatcher is infamous
Justin Bieber.
Justin Bieber.
Justin Bieber
Margaret Thatcher