Here you go... 281,702 celebrities to get you started: http://www.imdb.com/search/name?sta...leo,virgo,libra,scorpio,sagittarius,capricorn
lol !!! Thatz cool lol again !!! OP, why dont you use google and find out by yourself, you will get lot of sites and discussion for the same topic.
What rock have you been living under that you couldn't do this? And does your lecturer really expect a basic list or are there some qualifying arguments required? I'd want to know popular and why - not just the work they've done but why that has meant something to a large number of people etc.