The sudden and tragic news of 32-year-old actress [article id="1628612"]Brittany Murphy's death[/article] Sunday morning (December 20) has clearly touched fans and colleagues alike. While Murphy's friends and family mourn her untimely death in private, many celebrities have taken to Twitter to acknowledge the actress' life and work.

"Today the world lost a little piece of sunshine. My deepest condolences go out 2 Brittany's family, her husband, & her amazing mother Sharon," tweeted Ashton Kutcher, Murphy's "Just Married" co-star and former off-screen boyfriend. "See you on the other side, kid."

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

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

Friend Eliza Dushku said, "My heart aches having just learned of Brittany Murphy's death. We were friends time-to-time thru the yrs. I always admired her pure spirit."

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

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

Fred Durst, whose manager Murphy used to date, wrote, "RIP Brittany Murphy. What a sweet human being. My prayers are with her friends and family."

"Am beyond words by the loss of Brittany Murphy," Soleil Moon Frye tweeted. "I was so blessed to know your grace. My heart goes out to your mama+ loved ones."

"Nick and Nora's Infinite Playlist" star Kat Dennings wrote simply, "R.I.P Brittany Murphy. This is so awful."

"Am very shocked to hear of Brittany Murphy's passing," director Edgar Wright tweeted. "Was a fan of her in 'Clueless,' 'Freeway' and 'Sin City.' Very sad to lose someone so young."

Simon Pegg said: "Just heard about Brittany Murphy. How very sad. Met her briefly after Sin City. Seemed a great girl. My sympathy to her friends and family."

And critic Roger Ebert tweeted her praise, writing, "Brittany Murphy, dead at 32. She had a genuine quality."