Rostam Batmanglij, known professionally as Rostam, is an American musician, songwriter, and record producer born on November 28, 1983, in Washington, D.C. He gained prominence as a founding member of the indie rock band Vampire Weekend, contributing as a multi-instrumentalist and producer on their first three albums. Rostam also pursued a solo career, releasing critically acclaimed music that blends a variety of genres, including pop, rock, and world music influences. His work outside Vampire Weekend includes collaborations with artists like Frank Ocean, Solange, and HAIM, further establishing him as a dynamic and innovative force in contemporary music.