ChthoniC has also recorded a song urging the United Nations to let Taiwan join, even though its bid for membership keeps getting knocked down because of objections from China.
"I'm not for any political party, but I'm for my poor country's joining the United Nations," band lyricist Freddy Lim told reporters at the tour's launch.
Ozzy Osbourne, a satanic-theme rocker known for biting heads off bats on stage, is helping set up 20 of the US gigs, paying some transport costs and letting the Taiwan band promote UN membership as it wishes, Lim said.