Boone associates "A Wonderful Time Up There" with the most embarrassing moment of his career: when he flubbed the lyrics on a Tonight Show performance. He recalled in a Splash Magazine interview: "Dave Letterman was filling in for Johnny Carson on the Tonight Show. I was going to sing my big hit, 'A Wonderful Time Up There'… Because it was a big hit, I didn't put the words on the teleprompter. The words go by really fast and the thought entered my mind that it would be awful if I forgot the lyrics. Well, every performer knows that if you let that thought enter your mind, you're going to get messed up, and I did. I was singing the wrong words and finally stopped. The band is still playing, the singers are still singing and the producer, Freddy de Cordova, is signaling me to keep singing. I knew they were taping the show and sending it to New York and that it wouldn't be seen for a few hours so I thought we could start over. But, he kept signaling me to continue so I tried to get back in, but got lost again. It was in total shambles."