Just never perform the song again. Please!

Yesterday during halftime of the Seattle GB game Alice in Chains performed a number of songs to a mildly ruckus crowd (or so I am told). One of the songs that they performed was "Man in the Box", and Layne Stayley wasn't signing it (for well known reasons). I just saw the performance (on YouTube), and I think it's time for AIC to retire that song. It doesn't have the same feeling, and you can tell.

I remember my first concert was Lallapallooza at UNO back in 93. That song came on and you just felt it. Maybe it was because I was there and hearing it live, while this performance I saw a day later on YouTube, but without Layne it's just not the same.

What song do you think people should quit performing if it's not the original singer performing it?