STP on Kimmel and Letterman

I was searching for some Kimmel performances from last night and came upon, Vasoline. I love this song and it takes some real vocals to sing it.

With all the stress Weiland is going through, with the 8 day jail sentence and all, perhaps he wasn't in the mood to debut the first live performance of the band in 6 years. (Or whatever the time).

I have to say, I love his suit, but his vocals were wack. Check out the Kimmel clip, then compare it to the Letterman performance in 1994. You'll see what I mean.