A Roman soldier who was killed for his Christian beliefs, Sebastian has been a hero for gay men over the centuries – from Oscar Wilde to Keith Haring. Here's why. Loaded and emotive, the term "gay icon" is often applied to resilient female celebrities like Judy Garland (embattled), Cher (high camp) and Madonna (tireless). When Dusty Springfield died in 1999, Pet Shop Boys singer Neil Tennant was asked why his friend and collaborator had become "such a gay icon". Tennant's response, as he