02.12.12 2:53 PM ET
Celebrities Mourn on Twitter
The sudden death of singer Whitney Houston at age 48 shocked fans all over the world, and her life inspired an outpouring of grief on Twitter. The first hour after the news broke Saturday saw more than 2 million tweets on her death, peaking at more than 1,000 tweets a second. Nearly all of the trends shortly after were associated with her: RIP Whitney Houston, #DearWhitney, #IWillAlwaysLoveYou, et cetera. Here's how some of her friends and fellow musicians and celebrities said goodbye.