The pampered pooch went missing recently and sources claim the pretty star is "devastated".

A friend has posted a reward notice online. It reads: "Alessandra Ambrosio's 4 pound maltese named Buddha got out and is lost. He is tie dyed (sic) blue and green and is lost please help in anyway possible. She loves her dog so much and there is a large reward if someone returns him. He was lost in Beverly Hills."

The message adds, "If anyone finds a Blue and Green little dog please call 310 396 4400 or email Helpfindbuddha@gmail.com."