Green Day rocker Billie Joe Armstrong has helped track down a couple's stolen dog with the help of his followers.

The American Idiot star urged his 436,000 followers to help David Baker and Cassandra Niki locate their pet Mochi after learning of a campaign to get the mutt back after an apartment break-in in San Francisco, California over the weekend (10-11Jan15).

Armstrong's post on Monday (12Jan15) did the trick and a day later the pitbull was found safe and well and returned to her owners.

Armstrong posted a note confirming the news on Tuesday (13Jan15), writing, "Just want to let everyone know that Mochi made it home."

He also posted a photo of the happy dog on Instagram.