While some late music stars were remembered with huge performances, Cole only got a brief mention.
Natalie Cole’s son says the first African-American to win a Grammy for “Best New Artist” deserved a better tribute.
Robert Yancy says he's outraged his mom didn't get a star-studded tribute.
"She has deserved so much more than that because she has done so much," he said. The way "she was treated last night (was) unacceptable. It was not right."
He added: "It was really insulting."
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Sisters Timolan and Casey Cole agreed. "Not even verbally mentioned. It was not something we felt was worthy of such an iconic star."
Social media erupted during the Grammy broadcast.
“Natalie Cole - only a photo in a remembrance montage. David Bowie - a 7 minute tribute,” one person wrote on Twitter.
“We lost so many greats but Natalie deserved a tribute,” wrote another.
The “Unforgettable” singer’s image appeared during a montage video of artists who recently died.
She died on New Year’s Eve from complications of several health issues. She was 65.
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Lady Gaga paid respect to David Bowie. Jackson Browne and the surviving members of The Eagles remembered Glenn Frey.
Lemmy Kilmister of Motorhead got his own tribute from The Hollywood Vampires, which featured Johnny Depp, Aerosmith’s Joe Perry, Alice Cooper and the Guns N Roses’ rhythm section.
Earth Wind and Fire's Maurice White, who died Feb. 4, also received a tribute.
Timolan and Casey Cole currently run the family's non-profit organization, The Nat King Cole Generation Hope, for more information, click here.
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