TV Musicals: The Highs and Lows - Eli Stone (http://www.tvguide.com/PhotoGallery/Favorite-TV-Musicals-1060019/1060024)
Not that Jonny Lee Miller sang (at least I don't remember him ever singing), but his costars Victor Garber and Loretta Divine often did.
And in the shirtless scene I'd posted in the Elementary topic -
Eli Stone pilot:
(http://www.dsboards.com/images/Eli-Pilot.jpg)
(Click here (http://www.dsboards.com/images/Eli-Pilot.jpg) for a 848X480 version)
- it was actually hearing George Michael singing that interrupted his sexual encounter with his fiancee...