Billie Joe Armstrong Joins ‘The Voice’ Travis Faulk 12 years ago NBC announced that Billie Joe Armstrong of Green Day will be joining the TV show The Voice as a mentor for Christina Aguilera’s team. Share this: Billie Joe Armstrong And Norah Jones Announce Duets LPGreen Day Frontman Billie Joe Armstrong Kicked Off Flight For Sagging PantsUPDATED: Billie Joe Armstrong Flips After Green Day’s Set Was Cut Short