As a solo singer Julian has appeared with many of the world's leading orchestras, including the New York Philharmonic, the New York Pops, The Northern Sinfonia, the Liverpool Philharmonic, the Royal Philharmonic Orchestra, the London Philharmonic Orchestra, the John Wilson Orchestra, the Royal Concertgebouw Orchestra and the BBC Concert Orchestra. He has also appeared at The Proms at London's Royal Albert Hall, where he is a regular performer. Julian made his Carnegie Hall debut in 2014 and followed it up with another headlining concert in 2015.