 Kowaljow has made a number of recordings, including Puccini's "La bohème", conducted by Bertrand de Billy in 2008; Leoncavallo's "I Medici", conducted by Alberto Veronesi in 2010; and Mozart's "Don Giovanni", conducted by Yannick Nézet-Séguin in 2012.All his recordings are on the Deutsche Grammophon label.He also appeared the 2008 film of "La bohème" directed by Robert Dornhelm.