United Kingdom, April 18 -- Sir Elton John and Brandi Carlile are trying to make up the money lost by Donald Trump's cuts to HIV/AIDS funding.

The US president's administration has slashed the monetary support to the cause with experts warning it could reverse decades of progress in combating the virus that attacks the body's immune system, leading to more deaths by 2030.

Through the music collaborator's respective charities, Elton John AIDS Foundation and the Looking Out Foundation, they are seeking donations to raise the money needed to make up the huge loss.

What's more, the Looking Out Foundation will match every donation up to $100,000 to "double the impact".

Elton, 78 - who just teamed up with Brandi on the joint album 'Who Beli...