The comedian also said, "I don't think everyone knew how f--ing amusing she was".
He said she "sounded happy" the night before and her death was a complete shock.
One of the downsides to her design and manufacturing success was that Kate Spade products, particularly the handbags, were of such a clean and simple design that they became the targets of counterfeiters.
Following the news, handbag aficionados took to Twitter to pay homage to the accessory queen's legacy and share fond memories of their first Kate Spade bags.
Adam Best: "Let's make sure the tragic suicide of Kate Spade is not all for nothing and learn from this". "She was also a staple of NYC who spread goodwill". "We loved Kate dearly and will miss her terribly".
The fashion designer was found dead in an apparent suicide in her apartment Tuesday morning.
'Kate was more than a designer.
Spade told National Public Radio past year that she first discussed starting a handbag company with Andy Spade while they ate at a Mexican restaurant in 1991. "RIP Kate Spade. Love to her family", Groban wrote, while also sharing the number for the National Suicide Prevention Lifeline.
Kate Spade is an iconic name in fashion, synonymous with sleek, sophisticated handbags.
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It was the early aughts, and you could open just about any magazine and spot the designer's work in a second: It was vibrant, clever, colorful and infinitely more inviting than the pages of somber supermodels that surrounded it.
Born Katherine Brosnahan, Spade grew up in Kansas City, Missouri. One obvious measure of her influence was the number of counterfeit Kate Spade bags one could find on the streets, Arrington said. The group subsequently sold off its other operations and became Kate Spade & Co.
'My grandmother gave me my first Kate Spade bag when I was in college, ' posted Chelsea Clinton.
From the original boxy handbags, she expanded into shoes, luggage and other accessories, as well as a home line, stationery, and three books. 'My heart breaks for her family. "I think the plan was already in motion even as far back as then".
Here are six things you may not know about Spade.
Most known for Kate Spade Handbags, which she co-created with husband Andy Spade in 1993, the designer owned hundreds of branches around the world.
In 2016 she was ready to launch a brand new accessories brand, Frances Valentine.
Mallis, the former CFDA director, noted that the stunning news of Spade's death came just the morning after virtually the entire NY fashion industry had gathered at the Brooklyn Museum for the glitzy annual CFDA awards. "You see someone who kind of made a career off of making people smile", she said.