"My brother attended the Alice in Chains/Van Halen concert from 12/06/91 in Biloxi, MS and said that Layne was only there through half of the set and then left the stage acting like he was going to return but he never did, while the rest of the band performed instrumentals for the rest of the set. He doesn't remember the songs they played partly because it was a decade ago and also because he was more of a Van Halen fan. I hope this information helps with your website, Jonathan"