Justin Bieber kicked off his "Believe" tour in the valley at the Jobing.com Arena in Glendale.
Fans in attendance took to Twitter and said Bieber threw up multiple times during the concert.
FOX 10's Kristen Keogh went to the arena to talk to some true "Beliebers".
Follow this story: Justin Bieber fans swoon after meeting pop star
WTTG FOX 5 & myfoxdc
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