I actually got a chance to go to the taping of this tonight and had a lot of fun. The other big guest was Johnny Weir (figure skater) and it was a great match since I'm a big fan of his too.
George Lopez and his staff and crew seemed genuinely surprised and appreciative of how lively the crowd was. George wasn't actually there to watch the band's performance because he was doing a costume change for a bit he did with Johnny but he said later that he watched the performance from his dressing room and that he was impressed. He said they haven't had a musical guest that seemed so loved and well received and that they were the real deal. :'D Even the musical director of his band said that he liked the "second song" which was Vampire Money. (I was really excited to finally see it live.)
They other song they performed was SING. Vampire Money had to be censored and so it started with "3! 2! 1! We came to SUCK, haha.