In 1994 the Pet Shop Boys were invited to perform 'Go West' at the Brit Awards.
They agreed and brought with them 3 separate choirs of miners. Some of those miners had marched with the gay and lesbian members of LGSM in the 1980s. It is one of the great, near-lost music moments
vimeo.com/293437684
Other members of the colliery choirs said that they didn't know who the Pet Shop Boys were when they performed, but after they had relatives and friends (and remember these guys were from small-town Wales and England) come out to them, and say seeing them on that stage meant the trusted them.