I get a little mention in this interview by Lars Ulrich. And we played together for much longer than “a few days" obviously (or I wouldn’t even be remembered). But our story is long and detailed. (You can read more about Gypsy Rose by clicking on this link.
Here’s a look into the formation of Alice In Chains in the words of Jerry Cantrell:

Gypsy Rose on August 28, 1987.
(L-R) Mike "Bones" Gersema (Drums), Mike Starr (Bass), Tim Branom (Vocals), Brock Graue (Guitar - later replaced by Jerry Cantrell in late 1987)