Erik Grönwall makes a surprise appearance at a Europe concert.
Erik Grönwall, former vocalist of Skid Row, sang "Cherokee" with Europe at the band's show in Stockholm.
Lzzy Hale comments on replacing Erik Grönwall in Skid Row shows.
Lzzy Hale, from Halestorm, will be on vocals for Skid Row's upcoming shows, replacing Erik Grönwall, who left the band…