Leslie Carter, 25, passed away on Tuesday (Jan. 31). Cause of death has not yet been released, Billboard reports.
"Our family is grieving right now and it's a private matter," the Carter family said in a statement. "We are deeply saddened by the loss of our beloved sister, daughter, and granddaughter, Leslie Carter. We request the utmost privacy during this difficult time."
Leslie, Aaron's older sister and Nick's younger sister, appeared with her family in the 2006 E! reality show "House of Carters." She also released the song, "Like Wow!" which was featured on the "Shrek" soundtrack. She has a daughter with husband Mike named Alyssa Jane, born April 2011.
Read the full report here