And in the process, he showed off his and his band's skill at impromptu songwriting. As his set on Friday (Oct. 3) wound down, Adams began thanking individual members of the audience. And when we say "thanking" we mean calling out.

"Thank you for being in Weird Science," Adams said pointing to a member of the audience and issuing a good-natured tease.

He then moved on, singling out other audience members and saying, "Thank you for coming to the wrong concert, Mr. Black Flag T-shirt. Thank you guy that looks like Bob Weir [of the Grateful Dead] when we played a song that sounds like the Replacements, what the f-?"

His good humor took a turn as he continued. "Thank you lady from The Leftovers," Adams said, singling out another audience member. "I hope you get your phone fixed. I've been watching you f- with your phone for like two or three songs. I know you're going to get it fixed one day. And also I should buy you a cup of coffee one day so you can wake up. That's OK."

And he finished with a flourish, his voice raising to an enthusiastic yell as he said, "And also to the guy in the back who's still holding those three f-- balloons!"

Adams led his band into a unscripted performance of a song in ode to the gentleman and his three, which turned out to be four, f-- balloons.