Carrie Underwood brought to tears over fans’ sweet gesture for her late dog, Ace

Carrie Underwood is expressing gratitude toward her fans’ kind gesture in the wake of her dog’s passing.

Last week, Carrie shared that her longtime pet, Ace, had passed away. After fans learned of the news, several pitched in to honor the pup by donating more than $4,000 to the C.A.T.S. Foundation, which was created by Carrie in 2009 as a way to give back to her hometown of Checotah, Oklahoma. The organization provides funding to a variety of causes close to the singer’s heart, including animal welfare.

The monetary donation also came with an e-card signed by each fan who contributed, sharing messages of encouragement and photos with their own pets. The sentiment brought the superstar to tears.

“You guys are honestly the best! When I read this, I immediately started crying…I can’t believe you all pitched in like that!” Carrie professed on Twitter. “Thank you from the bottom of my heart. And thank you on behalf of Ace and all the little furry babies that you are helping!”