I agree with Tony... appearance is so critical, espically when doing a single. The only time I used an IEM was several years ago when the Buckeyes were playing UCLA on the west coast. I'll have to say, when your team scores a go ahead touchdown during your vocal, it adds a new dynamic (good thing it was an upbeat song!) of unknown source.

Recently, I've been using a Carvin spot monitor. I have it mounted on a mike stand and positioned about keyboard height aimed right at my face. It's very unobtrusive and workes well.

Glenn