Many of the biggest stars in country music took to Twitter following the news of Whitney Houston's passing.  Here is what some of them had to say......

Reba McEntire- "Rest in peace, Whitney"  Then on Sunday she tweeted "I do think the Grammys tonight will be a wonderful way to celebrate Whitney's career while paying tribute to her."

Lady Antebellum- "We are so heartbroken to hear of the loss of Whitney Houston.  One of the best voices EVER! Praying God's comfort for her family.-hill."

The Band Perry- "RIP Whitney Houston.#heartache"

Martina McBride- "So sad about Whitney.  She was one of my singing idols.  Prayers going up for her family, especially her daughter."

Luke Bryan-"On the bus listening to Whitney"  Very heartbreaking to lose someone who defined my generation.  Voice of an angel.  A very sad day."

(Dial-Global & Twitter)