The members of Pink Floyd have not played together for many years; but a cause of concern to the world has brought the remaining members together to record some new music.

David Gilmour and Nick Mason have joined up; along with Ukrainian singer Andriy Khlyvnyuk to record “Hey Hey Rise Up” to raise money for the people of Ukraine who has seen their country ravaged by the Russian military. The song also includes Guy Pratt on bass and Nitin Sawhney on keyboards.

Roger Waters has chosen not to be a part of the project.

Included in the recording is Khlyvnyk performing a clip of a Ukrainian song that he recorded in Kiyv in front of the St. Sophia Cathedral.

After seeing the clip posted on social media, Gilmour called it, “a powerful moment that made me want to put it to music.”

Khlyvnyuk was on tour with his band Boombox when the fighting broke out in February. He has traded his microphone in for a gun to help defend his country.

Khlyvnyuk was injured during the fighting and in the hospital recovering form his injuries. Gilmour spoke with the singer and played a portion of the song during the writing process. Gilmour said that Khlyvnyuk have him his blessing; adding, “we both hope to do something together in person in the future.”

Gilmour spoke on current events saying, “we want to express our support for Ukraine, and in that way show that most of the world thinks that it is totally wrong for a superpower to invade the independent democratic country that Ukraine has become.”

Released today, proceeds form “Hey Hey Rise Up” will go to the Ukraine Humanitarian Relief Fund.

Formed in 1960’s London, Pink Floyd were pioneers of psychedelic/progressive rock.