In October 2012 Lee announced his debut solo album, "Fallen Angel". The first track on the album, "My Father's Son", was premiered on 4 November by BBC Radio 2's Paul O'Grady. The album was released on 4 March 2013. Lee took on the part of Frankie Valli in "Jersey Boys" at the Prince Edward Theatre, London, from 15 March 2011 until 7 March 2014. At the end of 2012, whilst maintaining his "Jersey Boys" commitments, Lee took the lead role in "Aladdin" at The O2 in London and acted alongside O'Grady, who revived his alter-ego Lily Savage.