Splash News Online
"It's so great that Mate is a puppy so I can take him everywhere," she wrote. "But it won't be long until he's his full size!" A 9-week-old shepherd puppy, Mate could grow up to 125 lbs., which Cyrus jokes will make it "a bit more difficult to fit him in my Prius." The pup was a gift from Cyrus's parents, who wanted her to have a German shepherd, just like dad Billy Ray's pooch, Tex. The singer-actress is already mom to maltipoo Sophie.
Cyrus says Mate "woke [her] up with kisses" on Sunday, and spent time with Billy Ray and Tex before joining her on a shopping trip. Welcome to Hollywood, Mate!
Meet more celebrity pups on PEOPLEPets.com:
Flashback: Kim Kardashian's Road Trip with Dog Rocky
What Has 2 Legs and a Lot of Love? Sandra Bullock's Dog Ruby



