Etta James' Death: Hollywood Remembers the Legendary Singer

Hollywood is mourning the loss of Etta James, who died Friday at the age of 73 after suffering from leukemia.

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Legendary R&B Singer Etta James Dies at 73

Etta James Terminally Ill From Chronic Leukemia

The Grammy-winning "At Last" singer had been declared terminally ill two weeks before her death; in 2009, she was diagnosed with Alzheimer's disease and had been hospitalized in 2010 because of a dangerous staph infection and hospitalized again in May with a blood infection.

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Tweets from entertainment-industry stars began flowing upon the news. Here's a sampling:

Will.i.am: "Showing respect appreciation and love for all the wonderful music and joy #ettajames brought to the world...#ettajamesforever."

Emmy Rossum: "RIP the beautiful Etta James."

Glee's Harry Shum Jr.: "'At Last' is and always will be in my playlist for songs I can hear a million times and feel like it was new again. R.I.P. Etta James."

Shum's Fox co-star Amber Riley: "RIP Etta James :( such a unique & beautiful voice."

Kirstie Alley: At last my love has come along..my lonely days are over....RIP Etta James

Holly Robinson Peete: "RIP legendary diva Etta James ... Rest with angels Etta. Well done."

Taylor Hicks: "RIP Etta James. What a talent. She was a true non conformist in music and that's what legends are made of. #tellmama."

Denise Richards: "so sad to hear Etta James passed away.....my heart goes out to her loved ones."

Paramore's Haley Williams: "I will be forever grateful for your voice and your soul. Rest in peace."

MC Hammer: "When she sang she had the Gift to become 'The Song,' the pain, the love, the Glory."

Gabrielle Union: "We've lost another treasure."

Tamera Mowry-Housely: "At last was and will remain ICONIC."

Adam Lambert: "RIP Etta."