Famed director Cameron Crowe captures music legends Elton John and Leon Russell as they collaborate on The Union making its HBO debut on Thursday, February 2nd.

After 38 years of not seeing or speaking to Leon Russell, Elton John listens to Russell’s greatest-hits album while on safari in Africa with his partner David Furnish.  He is moved to tears.  Distraught at the thought that Russell – whom John considers one of his greatest musical influences – has seemingly fallen into obscurity, he vows to contact his idol and propose that they collaborate on an album together.

This behind the scenes look at the historical collaboration between Elton  and Leon will run on HBO throughout the month.