Question: Who were the players of the guest-appearing band on Mega Gem's debut album?
Sentence (from "Mega Gem"): Colors of the West features 33 musicians, including guest a appearance by Stelth Ulvang of the Grammy nominated American folk band The Lumineers While their musical style may vary from traditional punk music, the band is still influenced by the DIY-Punk sub-culture.
Relevant evidence: Yes