Michel Legrand, who regularly shares the stage with Berchot, transcribed The Umbrellas of Cherbourg, Yentl and The Windmills of Your Mind for him (version for two pianos).
Since 2007, he has been Charles Aznavour's solo pianist at the Palais des congrès in Paris and during tours in France, Egypt, Portugal, South and North America, and Moscow.
From 2013, he began a tour with Aznavour in Montreal, London, Tel Aviv, Amsterdam, Yerevan, Berlin, Frankfurt, Warsaw (where he received the Frédéric Chopin Prize), Barcelona, Rome, Los Angeles, New York, Moscow, Antwerp, Geneva, St Petersburg, Recife, Porto Alegre, Rio de Janeiro and other cities.
Berchot is regularly invited by the Société Chopin [fr] in Paris for the Bagatelle festival.
On 28 September 2009 in Paris, Berchot received the insignia of Chevalier of the Ordre national du Mérite from the hands of composer Michel Legrand, on behalf of the President of the French Republic, Nicolas Sarkozy.