Who sang khwaja mere khwaja?

"Khwaja Mere Khwaja" is a popular qawwali sung by A.R. Rahman for the soundtrack of the 2008 film "Jodhaa Akbar." The song is a tribute to the Sufi saint Khwaja Moinuddin Chishti and features Rahman's distinctive musical style. The vocals were performed by Rahman himself, showcasing his unique blend of traditional and contemporary music elements.