DJ Pauly D joins Britney Spears Femme Fatale Tour

I can hear Britney Spears fans groan in agony right now.
Why is this happening? Pauly D from Jersey Shore is opening for Britney Spears.
DJ Pauly D will join Britney Spears' Femme Fatale tour on the following dates:
August 17 - Grand Rapids, MI @ Van Andel Arena
August 19 - Pittsburgh, PA @ CONSOL Energy Center
August 20 - Columbus, OH @ Nationwide Arena
August 22 - Indianapolis, IN @ Conseco Fieldhouse
August 24 - Raleigh, NC @ RBC Center
August 25 - Charlotte, SC @ Time Warner Cable Center
From MTV:
A while back, there was a rumor that "Jersey Shore" star DJ Pauly D would be an opening act on Britney Spears' Femme Fatale tour. That rumor can now be confirmed as true. Pauly D will open for the singer on six of her August tour dates.He's set to hit the road with Spears on August 17 in Grand Rapids, Michigan, before his jaunt with her wraps on August 25 in Charlotte, South Carolina. "I am so excited to be performing on the Britney Spears Femme Fatale tour," he said in a statement. "Britney is one of my favorite performers and certainly one of this generation's most influential artists. It's an amazing platform to connect with my fans around the country."