In October 1969 a group of us went to the Bayfront Center in St. Petersburg to see George Carlin, the show was sold out. We headed up Pinellas County about ten miles to a club by the airport called the Electric Zoo. We paid a $3 door charge and walked in to see a band with two drummers, a guy on keys singing, and a fellow with long blonde hair playing a red guitar. We watched them for about 3 hours until the club closed, although I was only 19 and hadn't seen too many live acts, I was totally blown away. When they finished, the singer said, "we're the Allman Brothers, and our debut album comes out next month, I hope you buy it."
Another show comes to mind, it was at Merriweather Post Pavilion in Columbia, Maryland in 1997. The group Boston, which had only made 3 albums over 20 years, came out with a greatest hits with a couple of new songs. They very rarely toured, this time they had both singers. The original Brad Delp, now deceased, and Fran Cosmo, the vocalist on their third album. Their leader and guitarist Tom Scholtz is such a perfectionist, which is why they release so few albums, he was the same way when they toured. The music sounded like you were listening to a loud stereo version of their records. Every note and vocal was perfect, there was no opening act, just Boston performing for over two hours of pure rock.