After releasing their first singles The Flame and Blossom, the band decided to produce their next song in Germany. With the release of LaSTCaLL in October 2021, GENTLE GLOW succeeded in gaining international attention. The band skillfully wrapped their message in a modern dance beat, reaching a younger audience as well.

Still in December 2021, the Christmas song Time of Wonder was released, building on the success of LaSTCaLL and landing on numerous international playlists.