Green Day's Billie Joe Armstrong Uses Instagram to Help Find Missing Dog

Green Day’s Billie Joe Armstrong took to the power of Instagram and his 436,000 followers to help track down a couple’s stolen dog.

The search began when a thief broke into David Baker and Cassandra Niki’s San Francisco apartment and stole personal belongings and their beloved pitbull Mochi over the weekend, CBS San Francisco reported.

Billie Joe Armstrong Comes Clean About Rehab

Last September, Billie Joe Armstrong made headlines when, during his band Green Day’s performance at the I Heart Radio Music Festival in Las Vegas, the rocker unleashed a profanity-laced tirade that took aim at everyone from the concert’s promoter, Clear Channel, to Justin Bieber.

Billie Joe Armstrong Headed to Rehab

Billie Joe Armstrong is headed to rehab.

The Green Day frontman, 40, will receive treatment for substance abuse, the band’s rep told the AP on Sunday.

The announcement comes on the heels of a public meltdown at the iHeart Radio Music Festival in Las Vegas on Friday night.

Billie Joe Armstrong, Green Day Singer, Hospitalized

Green Day’s lead singer Billie Joe Armstrong was hospitalized over the weekend – and the band was forced to cancel a concert in Italy.

“We’re beyond upset,” said drummer Tre Cool in a video posted on the band’s website. “We’re as sad as you guys are. Billie is extremely upset about it.”

Armstrong, 40, was “rushed to the hospital … due to illness” on Saturday night, said bassist Mike Dirnt in the video.

Green Day's Billie Joe Armstrong Sings at Mark Zuckerberg's Wedding

Mark Zuckerberg may have had an intimate, backyard wedding, but there was at least one famous name on the modest guest list.

Green Day’s Billie Joe Armstrong performed at Zuckerberg’s Palo Alto, Calif., nuptials on Saturday, PEOPLE has learned exclusively.

“They’ve been friends for some time,” a source close to the artist tells PEOPLE of Zuckerberg and Armstrong. “He wasn’t paid. It was a total impromptu wedding present for a friend.”

But it wasn’t the only surprise of the day.

Billie Joe Armstrong Booted from Plane

Following in the footsteps of Gérard Depardieu and Josh Duhamel, Green Day’s Billie Joe Armstrong is the most recent celebrity to get kicked off an airplane.

The latest cause for the boot? Apparently a dress code violation.