So this is a question Ive been wondering about for a little while. All of you who do the Bar/Bat mitzvah, wedding type events what kind of music do you use for like the initial "wow" when the guests are walking in? Im kinda running out, using the same stuff over and over. Any new and fresh ideas?

Here's a list of those songs taken from a fellow DJs site:

Let�s get ready to rumble / Are you ready for this? By 2 Unlimited
Chicago Bulls theme (Sirius) - By The Alan Parsons Project
Rock and roll part II - By Gary Glitter
Eye of the tiger - By Survivor
Sing, Sing, Sing - By The Benny Goodman Orchestra
Theme from Mission Impossible - By Calvin Custer
Right now - By Van Halen
Let�s get this party started - By Black Eyed Peas
Get this party started - By Pink
Feels so good � By Chuck Mangione
Theme from Rocky "Gonna Fly Now" - By Ayne Robbins

Don't forget the Theme from Austin Powers.

I usually play elvis presley and real old songs.. and gradually heat it up...
For example:
First song: Elvis presley - Blue suede shoes
After a while:Nancy sinatra - these boots are made for walking
Later:Black eyed peas - Lets get it started
Later: dr dre ft. snoop dogg - Next episode
then u play new and good songs that bring up some heat