2007

  • Performance to support Give Us Your Poor and the Campaign to End Homelessness
  • Awarded the Golden Key to the city of Alexandria in Egypt by the Egyptian Minister of Culture acknowledging Mario's contribution to philanthropic causes and the arts, Egypt
  • Release of the CD Amor Oscuro, based on the poetry of Federico Garcia Lorca
  • Performance with José Carreras to support the José Carreras Leukemia Foundation
  • Performance for the institute of the late President of Greece, Konstantinos Karamanlis

2006

  • Release of the live concert CD/DVD Music of the Night. Immediately went number one and gold in Greece
  • Benefit concert for homelessness in Athens, Greece
  • Conducted master class, Milwaukee, WI
  • Solo benefit concert for the Yellow Ribbon Soldiers campaign in Cincinnati, OH
  • Solo performance for the Horatio Alger Association in Washington, DC
  • Solo concert in honor of the Ecumenical Patriarch Bartholomew of the Orthodox Church, at the Sun Dome with the Orlando Philharmonic Orchestra, Tampa, FL

2005

  • Participation in a concert with Placido Domingo featuring Kallen Esperian
  • Live performance at the Music of the Night concert (later released as a CD/DVD that acheived gold status)
  • U.S. tour with Jim Brickman
  • Release of his second international CD Follow Your Heart (Sony Classical) in the U.S. It reached number three on Billboard’s Top Classical Crossover Charts
  • Fundraising performance with the National Television of Greece to support children who lost families due to the tsunami in Asia

2004

  • Participation with Voices for Darfur, a UNHCR event with international stars accompanied by the Royal Philharmonic Orchestra, London, England
  • Performances in collaboration with soprano Hayley Westenra, London, England
  • Performance with Barbara Hendricks for an Evening of Jazz Below the Acropolis, Athens, Greece
  • Performance for the opening ceremonies of the Paralympic Games, Athens Olympic Stadium, Greece
  • Release of his second international CD Follow Your Heart(Sony Classical). It includes collaborations with Grammy award winner Alejandro Fernandez, and the Oscar-winning John Barry who wrote the song “Here’s To The Heroes” (lyrics by John Black), which was performed as part of the BBC 1 "Songs of Praise Olympics Special:", US and UK
  • Performance after the Cannes De-Lovely premiere as part of the closing ceremony with Sheryl Crow, Elvis Costello, Natalie Cole, Mick Hucknall, Alanis Morissette, Diana Krall and Kevin Kline
  • Solo performance at the Odeon of Herod Atticus in celebration of 550 years of the Great School of the Nation, featuring songs of Mikis Theodorakis, and Axion Esti from the Nobel poet laureate Odysseus Elytis. Guests included Jeff Leyton, Spanish soprano Carmen Avila, Greek baritone George Matheakakis and others

2003

  • Performance in a concert organized by UNESCO during the international conference for the Cultural Management of World Heritage Cities
  • Performances with soprano Deborah Myers and the Novaya Opera of Moscow with their choir for a Tribute to Maria Callas, in Russia and Cyprus
  • Tour in Europe, the US, and Asia to promote Sometimes I Dream, which was broadcast on PBS for eight million subscribers

2002

  • Performance singing works by Mikis Theodorakis with Greek singer Maria Farandouri for the Millennium festivities held on New Year’s Eve under the Acropolis, Greece
  • Performance of Sometimes I Dream which was filmed for a DVD, with guest performer Justin Hayward of The Moody Blues, Thessaloniki, Greece
  • Launch of first international CD Sometimes I Dream which sold over 350,000 copies worldwide, Athens, Greece
  • Performance at the José Carreras Leukemia Foundation Gala Concert

2001

  • Performance of Bravo China with Nana Mouskouri and the Chinese artists Liu Huan and Ying Huang, in both Greek and Chinese under the auspices of the Cultural Olympiad 2004 and the Ministry of Culture of China
  • Performance of Viva Verdi a tribute for the centenary of the composer’s death
  • Performance at the Charity Opera gala, Athens Concert Hall with the Greek National Opera, Athens, Greece

2000

  • Performance as “Tony” in West Side Story at the Teatro a La Scala, Milan, Italy
  • Solo performance with guest soprano Deborah Myers, Herod Atticus Theatre, Athens, Greece. It was later turned into a Best Selling CD Fengari Erotevmeno, (Love Struck Moon) which became triple-platinum
  • Title role, “Erotokritos” by Yannis Markopoulos, Athens, Greece

Other

  • Title role of "Orpheus" in the Orpheus Liturgy, an oratorio broadcast by the National Greek Television, Greece
  • Mario plays "Lun-Tha" in the Rogers & Hammerstein musical, The King and I, during the Covent Garden Festival, London, UK
  • Finalist, The Luciano Pavarotti International Competition
  • Performance at an opera gala celebrating the 500th anniversary of Columbus' discovery of America, hosted by Sir Peter Ustinov with Monserrat Caballe, Dimitri Hvorostowski, Julia Migenes-Johnson, Dennis O’Neil, Rita Hunter and the late Alfredo Kraus. This performance was accompanied by the Orchestra and Chorus of the London Royal Opera House and conducted by Robin Stapleton in the presence of His Majesty Juan Carlos of Spain, Her Majesty Queen Sophia, and HRH Prince Andrew of England
  • Mario wins the Onassis Scholarship to further his studies
  • Mario, supported by one of his mentors Marilyn Horne, completes a three-year course at the Juilliard School of Music in New York, studying with soprano Dodi Protero, New York, US
  • Performance in The Charity Gala Serenade To A Princess, celebrating the late Princess Diana’s birthday with Monserrat Caballe, Samuel Ramey and the British Youth Opera, in the presence of HRH Princess of Wales and in memory of Dame Margot Fonteyn, Whitehall Palace, UK
  • Mario stars as "Raoul" in Phantom of the Opera at Her Majesty’s Theatre, per Sir Andrew Lloyd Webber’s Invitation, London, UK
  • Successful audition for Maestro Nicola Rescigno and renowned tenor Alfredo Kraus who accepted Mario as his first private student, Rome, Italy
  • Mario studies opera with tenor Carlo Bergonzi at the Verdi Academy in Busseto, Italy (Verdi’s birthplace)
  • Mario wins the coveted Maria Callas Scholarship for Opera, Athens, Greece
  • Cameron Mackintosh hires Mario to play the young romantic lead of "Marius" in the West End production of Les Miserables at the Palace Theatre, London, UK
  • Played the character of "Puck" in A Midsummer Night’s Dream, a production in collaboration with the Royal Shakespeare Company for the Arundel Festival, London, UK
  • Mario moves to London from Greece to attend the Guildhall School of Music and Drama