Last night, we were shocked and saddened by the news of country singer Mindy McCready's death by apparent suicide. Mindy, 37, whose body was found February 17, had struggled with substance abuse and mental health issues. Her "soul mate" David Wilson, was also found dead last month. They leave behind a 9-month-old son, Zayne, and Mindy’s 6-year-old son, Zander.

Mindy's fellow country stars tweeted reactions to the tragic news.

Wynonna Judd: "Oh my! Mindy. Dear sweet girl. This is so sad. It just breaks my heart what addiction continues to take from this life. Addiction is a dis EASE & not a character flaw. When the pain becomes too much, it causes people to want that pain to stop. This is just so Unbelievable & so sad. God be with the family & those babies. Surround them with your grace & mercy. Sleep in Heavenly peace Mindy."

LeAnn Rimes: "My heart goes out to Mindy McCready’s family. I knew her well. It’s a horribly tragedy. May peace be with her son’s."

John Rich: "Very sad to hear about Mindy McCready. When I was in Lonestar she was our label mate and we were friends. A tragic end to a talented life."

Jason Aldean: "Just heard about Mindy McCready. My thoughts and prayers are with her 2 boys and her family."

Chely Wright: "Really really sad to learn the news about Mindy McCready. I will pray for her children and I hope that people are gentle with her memory."

Gretchen Peters: "So sad to hear about Mindy McCready. I met her in the first flush of her early career. This is a hard business. Sometimes success is poison."

Carrie Underwood: "I grew up listening to Mindy McCready…so sad for her family tonight. Many prayers are going out to them…"

Sources: E! News, RadarOnline