Honestly I have to say it was the Kelly and Gaga concert at the House of Blues in Boston a few years ago. I had met Gaga the same day and she was late for soundcheck but she was still really good. This was during The Fame days. And Kelly was FLAWLESS that night.. the two of them put on such a good show and the energy was amazing. It was for the Grammy's T-Mobile sidekick thing..
Mrs.Carter Show. Everyone was singing and dancing to every. single. song. At Madonna's concert she got boos (not from me) and at Rihanna's no one knew any of the songs except the singles.
