Hip hop artists Macklemore and Ryan Lewis have joined a United Nations campaign that seeks to end laws worldwide that discriminate against gay, lesbian, bisexual and transgender people.

Free & Equal, an initiative launched in July by the United Nations Human Rights Office, on Tuesday announced the artists as their latest equality champions.

“We're so honored to be working with the United Nations and Free & Equal to help spread a message of equality and respect,” Macklemore said in a statement. “Ryan and I have always believed that human rights are for everyone – no exceptions.”

Macklemore and Lewis won this year's MTV Video Music Award for “Best Video with a Social Message” with their chart-topping single Same Love, which has become an anthem for gay rights.

(Related: Macklemore says gay rights are human rights in accepting VMA award.)

“Macklemore & Ryan Lewis are probably the biggest duo in music today,” said Charles Radcliffe of the UN Human Rights Office. “Their music is enjoyed by hundreds of millions of people but it's also brought a human rights message to a massive new global audience. We are thrilled to have their support for the Free & Equal campaign.”

Other celebrity supporters include Ricky Martin, South African singer Yvonne Chaka Chaka, Bollywood actress Celina Jaitly and Brazilian singer Daniela Mercury.