Originally, the one-eyed sailorman was voiced by vaudevillean William Costello, aka "Red Pepper Sam." However, working with Costello proved to be more trouble than it was worth, and subsequently,...
None of the actual band members have a girly voice but you may mean Shawn's sister Melissa (she sings on their albums) . If you mean Shawn he doesn't have a girly voice he's just a tenor.