RyanDan is a Canadian musical, songwriting and producing duo, consisting of identical twins Ryan and Dan Kowarsky, whose music is a mix of pop, opera, and classical.
The Kowarsky brothers were originally part of the boy band B4-4. They later worked as a vocal duo known as RyanDan. They have also produced for a number of Canadian artists including Blake McGrath, Danny Fernandes, Tyler Medeiros, Mia Martina, Massari and others. They have also appeared as background vocals for Shania Twain in concert.