Sam Smith has dedicated his new music video for hit Lay Me Down to the LGBT community, in the hopes one day gay and transgender people will be able to marry anywhere.

The singer posted a moving message on Instagram, expressing his hopes for equality in the near future.

He wrote: "Dear all, The Lay Me Down music video holds a very dear place in my heart. With this video, myself and Ryan Hope the director have decided to make a statement and showcase something we passionately believe in.

"This video shows my dreams that one day gay men and women and transgendered men and women all over the world, like all our straight families and friends, will be able to get married under any roof, in any city, in any town, in any village, in any country.

(Image: Sam Smith / Twitter)

"I hope you enjoy it. I love you all. x."

Fans shared their support for his cause, and one commented: "You are literally what I want to be. And to so many others you help them like me.

"Not only do you have a great fantastic amazingly amazing voice you also have a strong voice people will listen too and you can stand for others who don't have a voice. I love you so much and that video was absolutely beautiful. I hope I can be like you one day."

Another added: "In love with those words!!!!"

The video shows Sam stood at the alter of a church on his own signing, with a small crowd of family and friends sat behind him.

(Image: instagram/kidjongo)

Flicking to a heavily tattooed man crying, to happier scenes at the end as he meets his future husband.

Sam recently split from his boyfriend of just a few months Jonathan Zeizel , and according to The Sun, he introduced his break-up track Good Thing by saying: “This song is very special for me today, as I’ve actually had to do a very similar thing with someone I’ve been seeing.”

The pair, who met filming the singer's music video for Like I Can, confirmed they were an item at the end of last year, before spending New Year together in Australia.

The star later posted a sad-looking selfie on Instagram with the caption: "Sometimes you just need to lay in bed with a glass of red wine and a football T shirt and listen to Joni Mitchell. It's been a sad day. Beautiful show, but sad day x."

Watch the video above.