[23] The choir has also participated in Expo 2000 (Hanover, Germany) and the Sixth World Symposium on Choral Music (Minneapolis, Minnesota, USA, 2002).

[24] Hekekyan has performed extensively in Russia, Georgia, Latvia, Lithuania, Estonia, the Netherlands, Germany, France, Belgium, Switzerland, Denmark, Israel, Japan, the UK, Spain, Poland, the Czech Republic, Austria, the US, Canada, Cyprus, Egypt, Greece, Australia, South Africa, and China.

[35][36] In 1996, Hekekyan was awarded the Movses Khorenatsi Medal by the President of Armenia for his contributions to the advancement of Armenian culture.

[38][39] He has also been awarded the Leonardo da Vinci Silver Medal by the European Academy of Natural Sciences with the Little Singers of Armenia.

He was the artistic director of the Children and Youth International Festival Golden Ferry organized by PABSEC in 2001 and 2002 and the Aram Khachaturian Centenary Committee in 2003.