We had this issue with our almost three year old. Finally, i put one of those child thngies on the doorknob of her room and didn't respond when she asked me anything or started crying.
When it got too bad I went in there acting very angry and told her that mommy is ANGRY that she is making lots of noise and getting out of bed. (we work on... angry, happy, sad, We tell the kids that it is OK to be ANGRY but you must do it in your room -- if they are screaming-- so they know what that feeling is)
That worked. We still have issues sometimes.. but nothing like at the beginning