Anita Mui, Hong Kong’s iconic Cantopop diva, emerged as a cultural beacon during the city’s turbulent transition from British colonial rule to Chinese sovereignty in 1997. This paper examines how Mui leveraged her music and public persona from the late 1990s to the early 2000s to foster cultural resilience and promote philanthropic causes amid post-handover social anxieties. Through textual analysis of key songs such as Woman Flower (1997) and Sunset Song, alongside archival research on her charity concerts (e.g., her 2002 SARS relief efforts), this study reveals how Mui’s artistry intertwined personal vulnerability with collective hope, reinforcing Hong Kong’s distinct identity. Drawing on media reports, fan accounts, and cultural studies frameworks, the paper argues that Mui’s musical activism—blending emotive performance with tangible acts of charity— constituted a form of soft resistance against fears of cultural erosion. Her legacy, evident in posthumous tributes such as the 2023 Hong Kong Heritage Museum exhibition, underscores her status as the “Daughter of Hong Kong,” inspiring regional artists and resonating with contemporary struggles for cultural autonomy. This analysis illuminates the intersection of music, philanthropy, and identity during a pivotal historical moment, offering fresh insights into Mui’s enduring sociocultural impact.