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By Fan Winston

Haters gonna hate. Melanie Griffith knows this all too well. Posing for photographs at the Oct. 20 Children's Hospital of Los Angeles Gala: Noche de Ninos, the Oscar-nominated star looked slim and sexy in a strapless, curve-hugging floral gown by Dolce & Gabbana, with Miu Miu platform sandals, red lips, and a tousled up-do. 

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But it seems not everyone thinks the 55-year-old blonde is aging well. Us Weekly caught up with Griffith on the red carpet, where she revealed that folks on Twitter have had some not-so-nice things to say about her appearance of late. 

"Most people are telling me I look horrible," the "Working Girl" actress told Us. "The tweets I get are really nasty." 

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Still, the star -- whose daughter Dakota Johnson stars in the new Fox sitcom "Ben & Kate" -- appeared to be in good spirits all night. She worked the room like a pro, smiling and laughing as she chatted with husband Antonio Banderas, pal Jamie Lee Curtis, and supermodel Heidi Klum, who received a "Courage to Care" award from the hospital. 

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So what's the secret to Griffith's composure in the face of criticism? Modesty. And exercise. 

"I don't know if I look that great," she demurred. "[But] I work out a lot. I have a trainer that I [work with] four times a week, and I do hot yoga."  

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