An 18-year-old girl from the audience plays on stage with Green Day and nails it!
During Green Day's cover of Operation Ivy’s “Knowledge” in Oakland, California. Maddi Gruber was chosen out of the crowd by lead singer Billie Joe Armstrong and brought on stage to play guitar with the band. Green Day does this quite frequently as you can find on other YouTube videos. Billie Joe gives a quick lesson and then turns the spotlight to the guest on stage; letting him or her do their thing before giving them the guitar as a souvenir. What you won’t see on most of the videos is the audience member completely killing it like Maddi Gruber did! The 18-year-old went off, jumping around the stage with her green and blue hair flying around everywhere as she nailed the guitar riff like a professional.
That must have been a lot of fun for her! She'll probably remember it for the rest of her life.