Originally Posted by Psy-Fi

I saw Weird Al by accident many years ago.

I bought tickets to see the Violent Femmes, marked the date on my calendar and when the day of the show came up, I went to the venue with a friend. We gave the doorman our tickets, he looked at them, tore the stub off each one (this was before tickets were scanned) and we went inside. As we were walking to the bar, a band started playing on the stage and my friend said "that looks like Weird Al on stage." At first I thought he was the opening act, but it seemed odd that he would've been paired with the Violent Femmes. My friend looked at his ticket, laughed, and said "check your ticket" so I did and noticed the date of the Violent Femmes show was for the previous day. I had marked the wrong date on my calendar and somehow the doorman hadn't looked at the info printed on either of our tickets and we wound up getting into the wrong show the following evening.