Does there exist a service that can take a monophonic melody (eg simple piano melody) and generate someone singing that melody in key? (to be used to draft song ideas during pre-production)

Title says it all, but I’m a song writer and not a singer, if I want to share vocal melody ideas to go with songs it generally is included as a piano line in a song for the actual singer to take ideas from, I’m wondering if I can take that a step further and have AI generate singing that melody to take its place when sharing ideas to the singer