Frangoulis invited him back for his "Mario & Friends" performance series at the Athens Arena where he appeared on stage with international artists such as Lucio Dalla, Justin Hayward, Madeleine Peyroux, Lara Fabian and Frances Ruffelle.
In 2009, international diva Lara Fabian invited him to open some concerts of her 2009 European tour, including 2 sold-out performances at the Zénith Paris.
[2][3] During the same year, he also performed in Boston, as a guest of the Greek Institute, and also in St. Petersburg, Russia and London with the Oxford Philomusica.
In the summer, Perris toured with Mario Frangoulis in Turkey and a few months later he took part in a tribute concert to Mimis Plessas.
The album included 11 new songs in French, composed for him by some of the most acclaimed French-speaking songwriters as well as Ma Solitude, a duet with Belgian superstar Lara Fabian.
[16][17][18][19][20][21][22][23][24][25][26][27][28][29] [30] In 2013, Perris toured extensively with Alkistis Protopsalti in Greece and Cyprus as well as performing in Montreal, Canada and Pasadena, California.
[31] In January 2014, George Perris traveled to New York for his debut performance as an international ambassador of Horatio Alger Association at Jazz at Lincoln Center.This show titled ‘George Perris Live at Jazz at Lincoln Center’ was broadcast in spring 2014 on American cable networks, and released as the DVD titled "Live in New York" on 15 August 2014, in Australia.
[45][46][47][48][49][50] On 17 November 2014, George Perris performed the American National Anthem at Madison Square Garden at the New York Knicks and Washington Wizards Game.
[54] [55] [56] [57] In April 2016, he announced on his official page on Facebook that he was recording an album of duets with fellow Greek tenor Mario Frangoulis and then touring Greece and Cyprus together.
[59] [60] [61] Perris embarked on a joint summer tour of Greece and Cyprus with Mario Frangoulis, playing in more than 17 dates.
[62] [63] [64] [65] Perris and Frangoulis ended their joint tour with a sold-out performance at the historic Odeon of Herodes Atticus under the Acropolis in Athens with special guests Jorge Calandrelli and Tina Arena.
[86] In June 2020, he released "Stathera sta oneira", his first album of original Greek songs, composed by acclaimed songwriters Evanthia Reboutsika and Lina Nikolakopoulou.
His song "Kardia koita", a duet with Greek icon George Dalaras became the theme title of the TV series "Aggeliki" and went on to reach mainstream success.
[92][93] In December 2021, he was chosen by the Grammy Awards for their "Global Spin" video series, which showcases international artists.
[95][96] In April, he collaborated once again with the Grammy Awards, releasing a cover of Mariah Carey's "Butterfly" for their "Reimagined at home" series.
His idol, Greek legend Nana Mouskouri appointed him as an ambassador through a special video she recorded for the occasion.
He explained that he finally felt ready to do it after years of fearing it might hurt his career, but mainly as he wanted to be a positive influence on young people, filling a void that existed when he was growing up.