The Willoughby Tucker Forever Tour is the ongoing fourth concert tour by American singer-songwriter and record producer Ethel Cain, in support of her second studio album, Willoughby Tucker, I'll Always Love You (2025). Set to include 92 shows, the tour began in Seattle, United States, on August 12, 2025, and is set to conclude in Hamburg, Germany, on July 1, 2026. The band 9million was announced to serve as a supporting act for all the 2025 shows.