|Born||22 January 1978|
|Alma mater||De la Salle College|
Calleja began singing at the age of 16, having been discovered by tenor Brian Cefai and continued his studies with Paul Asciak. At the age of 19 he made his operatic debut as Macduff in Verdi's Macbeth at the Astra Theatre in Gozo and went on to become a prize winner at the Belvedere Hans Gabor Competition the same year. In 1998 he won the Caruso Competition in Milan and was a prize winner in Plácido Domingo's Operalia International Opera Competition in 1999.
On 8 October 2015, Calleja was elected to the Board of Directors of the European Academy of Music Theatre.
In 2009, Calleja began a series of annual concerts at the Granaries in Malta. The first concert was performed with Michael Bolton. In 2010, he sang with Dionne Warwick and Riccardo Cocciante and his choir of 500 children. In 2011, he appeared with soprano Hayley Westenra and Italian singer Lucio Dalla. In 2012, he was joined by Ronan Keating and Gigi D'Alessio. In 2013, he sang with Zucchero, Rebecca Ferguson, Gianluca Bezzina, Riccardo Cocciante and Tenisha. In 2015, he sang with Anastacia as a special guest.
Calleja's first solo recital disc, Tenor Arias, was released in 2004. He followed that up in 2005 with The Golden Voice. In 2011, his third solo album Joseph Calleja - The Maltese Tenor reached second overall position on the German charts and debuted at number one in the US Billboard Classical Traditional chart. His 2011 DVD of La traviata from the Royal Opera House and costarring Renée Fleming was nominated for a Grammy award.
Calleja made a guest appearance on Renée Fleming's album By Request, singing the role of Alfredo in the act 1 closing scene of La traviata. His recording of "La donna è mobile" from Verdi's Rigoletto was featured in the soundtrack for the 2007 film No Reservations, starring Catherine Zeta-Jones.