Mercedesz Csampai has been interested in theatre and music since her childhood. She was born in Budapast and both her parents are musicians: father Elemer Csampai - Hungarian violinist at the Budapest Opera House orchestra and mother Natalia Usmanova from Moscow - actress and opera singer at the Opera Vox in Stockholm.

Her very first performance as a pianist Mercedesz made at the age of 5 in Stockholm, where she moved with the family in 1996. When she turned 7 - she took a part in the piano competition "Unga Pianister" (Young Pianists)- didn't win, but reached to the semifinals. She continued her musical education and graduated from Lilla Academy School.