Los Angeles, Jul 30 (IANS): Singer Sam Smith has expressed his despair over how many gay men and women face discrimination in the world.

The openly gay singer began pondering the plight of so many homosexual individuals after going to watch the movie "Holding The Man", which is about a man's coming out journey, on Tuesday.

Then, Smith urged his fans to do more to help gay men and women across the world who do not enjoy the same freedom he does in his native Britain.

In a series of emotional tweets, he wrote: "It's so deep. But sometimes I sit and get so upset when I think about all the 100's and thousands of gay men and woman all over the world... Who are going through such heartache and hard times for just wanting to love someone they love... It makes me so sad and sometimes feel so guilty that I have that simplest freedom whilst others don't.

"Sorry to get so deep, but it kills me. I don't understand why more of us aren't doing something about it. I'll leave it there. (sic)"