Pop music fans were stunned yesterday, Sept. 6, when it was announced that Simone Battle (second from the right in the picture above) of G.R.L. had committed suicide in her Los Angeles home. She was only 25 years old.

According to TMZ, Simone's father, Anthony Battle, says that there were no signs that she was battling any kind of depression, although he admits "it's possible she may have had an invisible disability." Close friends of Battle told the site that there weren't any signs that she was suffering as well.

In the immediate wake of the news, the band's Twitter feed posted this statement: "Words cannot express the depth of our loss. Simone's incredible talent was only surpassed by the size of her heart. We will carry her memory with us in everything we do."

Two members of the group, Lauren Bennett (far left in the picture above), and Natasha Slayton (far right in the picture above), posted their own statements on their personal social media accounts.

Bennett wrote in a picture post on her Instagram account, saying, "We were supposed to conquer together… we were a team, it wasn’t supposed to be this way. We all worked so hard together, united like family for this dream we all shared. Things will never be the same without her. The thought of her no longer being here is devastating and shocking for myself and all her loved ones. Please show her love, appreciation and celebrate her life the way she deserves. I love you Simone, thank you for sharing your moment in time with mine."

Slayton also took to Instagram to share her thoughts, writing, "I really don’t know how to form thoughts and words rights now. I am inexplicably heartbroken and overcome with sadness over the loss of our best friend and sister, Simone Battle. I am so grateful to have shared some of the best experiences of my life with her, and I will forever be thankful to every ounce of strength, courage and determination she taught me. She was one of the most talented and brilliantly beautiful people (inside and out) I have ever met. Simone, I will never understand why you left the way you did, but I will forever love you. Thank you for sharing your endless talents and beautiful, glowing heart with us all. I love you so much."

The rising girl group, formed by Pussycat Dolls creator Robin Antin, had collaborated with Pitbull on the hit single, 'Wild Wild Love' and released their self-titled debut EP in late July which includes their first single, 'Ugly Heart.'

Watch G.R.L.'s Music Video for 'Ugly Heart'