always wonder how these stars like Rihanna or Beyonce do to be su secure in stange, in front of 100,000 spectators??? It's a big mistaery for me. they look so incredible confident.. do they study acting? they take some drugs? I mean.. they are not actresses.. they are singers... or most singers study acting and theatre and I never noticed?? just wondering... you can be a great singer, but that doesn't mean you can be confident in front of 100K people.. but all these stars are. any ideas?..