"solo_singer" . . "Herrera, \tMichael Arthur"@en . . . "Michael Arthur Herrera (born November 6, 1976), known professionally as Mike Herrera, is an American singer, songwriter, musician, and bass guitarist, most widely known as the lead vocalist, bass guitarist, and composer for the punk band MxPx. He is also the frontman of the band Tumbledown."@en . . . . . "1976-11-06Z"^^ . . "American rock musician, vocalist and bassist for MxPx" . . . . . . . . . "Michael Arthur Herrera"@en . . . . . "1992Z"^^ . . "1976Z"^^ . . . "Mike Herrera"@en . "Herrera, Mike"@en . . .