Twitter lit up on Saturday night as a number of country music stars shared their feelings about the tragedy of the stage collapse at the Indiana State Fair. Jason Aldean: "Just saw the video of stage collapse last night at the Sugarland concert. Our thoughts and prayers go out to all the families of the people who were killed and injured. Unbelievable!"

Dierks Bentley

"man....my heart goes out to all the country fans at the Indiana state fair. praying for you all"

Blake Shelton

"My prayers to the people at the Sugarland concert in Indianapolis......Absolutely shocking and hard to comprehend...Beyond belief...4 confirmed dead (now 5)...The more I see and learn about this the sicker I am...Storms and high winds!!! When will we learn?"

Reba

"What happened in Indianapolis tonight is what promoters, artists, crew and fans pray never happens. From my band, crew and the entire Starstruck organization, we send out thoughts and prayers to the 4 people (now 5) who lost their lives tonight and to everyone who was at the concert. Jennifer and Kristian, I love you both."

Keith Urban

"I just saw the footage from Indiana State Fair tonight on youtube and am absolutely in shock. We send our prayers and thoughts to each and everyone of you who were there and your families and loved ones as well. God bless you all."

Martina McBride

"So sad to hear about the State Fair in Indianapolis. Our prayers are with Sugarland, their fans and all the personnel working there. this is a horrible tragedy here in Indy...so proud of the country music family for all the support and most importantly, our prayers are with the families of the injured and the families of the four people (now 5) who were killed."

Jay DeMarcus of Rascal Flatts

"All thoughts and prayers go to the folks in Indy and Sugarlands camp tonight....What an awful tragedy..."

(*all info taken from dial-global prep site*)