Beyonc Knowles is sad to see Etta James pass.

The 73-year-old soul songstress died in Riverside, California today after battling Hepatitis C, leukemia and dementia.

Beyonc, who had the opportunity to meet Etta before her death, honours the singer's memory.

"This is a huge loss. Etta James was one of the greatest vocalists of our time," Beyonc posted on her website Friday. "I am so fortunate to have met such a queen. Her musical contributions will last a lifetime."

Beyonc, who portrayed Etta in the 2008 film Cadillac Records, feels privileged to have learned so much about the dynamic musician.

"Playing Etta James taught me so much about myself, and singing her music inspired me to be a stronger artist," Beyonc shared. "When she effortlessly opened her mouth, you could hear her pain and triumph. Her deeply emotional way of delivering a song told her story with no filter."

Beyonc respects the singer's tenacity and courage.

"[Etta] was fearless, and had guts," Beyonc said. "She will be missed."