Billie Joe Armstrong hit the town in Glasgow prior to Green Day's huge Bellahouston Park show tonight.
The 50-year-old frontman was spotted in the crowd last night at New York singer songwriter Jesse Malin's gig at iconic city venue, King Tut's Wah Wah Hut.
A few other Green Day members were also reported to have joined Armstrong at the show, as they let their hair down on a wee night off in Glasgow following their show at Dublin's Marlay Park on Monday evening.
