Miranda Lambert is mourning the loss of her two mini horses, Sugar Pie and Adrianna, who both died on the same day.

She shared a loving tribute to them on November 2st, which included a number of photos of the horses enjoying life on her farm. "I've had 18 years with these littles and I can't tell you how much joy they brought me," Miranda wrote on her post. "The best part about being an animal mom is the joy. The worst part is when the time comes to say goodbye."