TMZ News VIDEO: JUSTIN BIEBER PURPOSE TOUR – WET & SHIRTLESS IN SEATTLE

Bieber kicked things off at Seattle’s KeyArena with a 90 minute set that featured a torrential downpour which prompted the Biebs to whip off his shirt. The kid knows what sells.
Aside from his songs — he opened with “Mark My Words” and closed with “Sorry” — he also wowed the crowd with trampoline acrobatics above the audience.