The deadly Sugarland stage collapse Saturday night (Aug. 13) touched a nerve among many country stars, who used Twitter to express their thoughts and sympathy.

"My prayers to the people at the Sugarland concert in Indianapolis.... Absolutely shocking and hard to comprehend... Beyond belief," Blake Shelton tweeted.

"Really sad about the sugarland stage collapse. What a tragedy," Brad Paisley wrote.

"Just saw the video of stage collapse last nite at the Sugarland concert. Our thoughts and prayers go out to all the families of the people who were killed and injured," Jason Aldean tweeted.

"What happened in Indianapolis tonight is what promoters, artists, crews and fans pray never happens," Reba McEntire posted on her Twitter feed. "From my band, crew and the entire Starstruck organization, we send our thoughts and prayers to the 4 people who lost their lives tonight and to everyone who was at the concert. Jennifer and [Kristian], I love you both."