Hollywood Mourns Brittany Murphy

Brittany Murphy's former co-stars and friends in Hollywood express shock and sadness over the actress' sudden and untimely death this morning in Los Angeles.

Many stars shared their grief via Twitter.

Lindsay Lohan writes, "My deepest condolences go out to all of Brittany Murphy's loved ones& may she rest in peace....She was a great talent w/a beautiful soul xo"

Kim Kardashian writes, "I am in shock that [Brittany] Murphy has died! Clueless is my all time favorite movie. My prayers go out to her family & husband"

Khloe Kardashian writes, "OMG!!!! This is horrible news when anyone passes. I'm so sorry for her family. Send prayers out please!"

Jessica Simpson writes, "Brittany Murphy was an incredible ray of Light to so many people. Her smile was contagious. My prayers are with her family and loved ones."

Russel Simmons writes, "I met Brittany murphy before her star rose its tough to find peace in fame. I wish her peace and happiness in her next lifetime"

Alyssa Milano writes, "[Brittany] and I did a USO Tour together in 2003. [Love] She was a sweet soul, with a lot of talent and heart."

Hilary Duff writes, "RIP Brittany Murphy forever in our hearts"

Fred Durst writes, "What a sweet human being. My prayers are with her friends and family."

Film critic Roger Ebert writes, "She had a genuine quality."

Soleil Moon Frye writes, "I was so blessed to know your grace...I will never forget the beautiful school girl you were and woman you became."

Holly Robinson Peete writes, "Brittany was so sweet when I met her. Flew to Vegas together once - I remember her mom being lovely.My condolences to all of her loved ones"

See photos of Brittany through the years

Alicia Silverstone shared the screen with Murphy in "Clueless," the film that shot both actresses into stardom -- and Silverstone shared her shock over Brittany's death with People magazine, saying, "I always felt connected to her as we shared a very special experience in our lives together. I feel love in my heart for her -- and hope she is at peace. This is truly sad."