juanga2.jpgIf you didn’t know, Paulina Rubio, Don Omar, and Juan Gabriel performed at Sammy Sosa’s birthday party over the weekend.

Well…we found out a few things about the deets of the star-studded event.

When we heard that Juanga performed, we immediately thought that it was a high price for his show, but we were wrong!

In fact, word is that Juan Gabriel was the only one that didn’t charge!

What’s even better is that he walked around among all of the invited guests, saying hi, talking to everyone, and taking pic for anyone that requested.

Pau and D.O. stayed behind the stage and never came out to mingle.