In my recent review of Marc live at Wilton's Music Hall, I mentioned the song Lavender, which at the show, was accompanied by a very striking slideshow, depicting a number of celebs and non-celebs alike, who in the past;
a) hid their sexuality for fear of losing their popularity (or just for fear); or
b) came out, and paid the consequences.
I've found that very slideshow, along with a demo version of Lavender. Have a look, and listen to the lyrics, it's pretty moving stuff.... oh, and note the two pictures of a young Marc that pop up in it too!