Why do i see tons of ppl tweeting on celebrity pages, then i do it and mine doesent show up? ?

What those celebrities are doing is they are RTing those tweets that insterest those celebrities. When they RT that person that tweet shows up on there wall they did that because they really liked that tweet or they keep getting spammed by that person so they RT them so that person leaves the celebrity alone. Your tweet will not show up on there profile unless they RT you. The chances are very silm but if you send that celebrity a unique tweet and they like it they will RT you. Your tweets are sent to them look on your profile it will show you that you did tweet them. Maybe that certain celebrity saw it just didn't RT it many celebrities see and look at all of the tweets sent to them just don't RT them they try their best to notice all their fans. They don't really have the time to tweet, RT and message everyone.