According to www.wikipedia.org, celebrities such as Justin Timberlake, Mariah Carey, Omarion, Rod Stewart, and Victor Willis, the lead singer of The Village People, have all reportedly had vocal nodules. Rachel Ray reportedly had a successful surgery to remove her vocal nodules.
Ru - a rare polyvalent metallic element of the platinum group; it is found associated with platinum. atomic number 44, ruthenium. metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
doer - a person who acts and gets things done; he's a principal actor in this affair; when you want something done get a doer; he's a miracle worker. actor, worker. individual, mortal, person, somebody, someone, soul - a human being; there was too much for one person to do.