Tatiana Eva-Marie is a Swiss-American bandleader, singer, producer, author, and actress. She was born in Switzerland into a family of artists. Her father is Swiss-French and her mother is Romanian.

She is known for founding the Avalon Jazz Band, singing jazz and French pop derived from the Django Reinhardt tradition. Her singing has been compared to jazz vocalists Cyrille Aimée and Cécile McLorin Salvant. Her band opened for vocalist and pianist Norah Jones.

Biography

She is the daughter of composer Louis Crelier and violinist Anca Maria, and she grew up in France and Switzerland. She later moved to New York and founded the Avalon Jazz Band.

In 2024, she wrote the libretto for an opera, "Eden Park", music by Swiss composer Gérard Massini. The libretto is inspired by the true story of George Remus.