TACOMA, Wash. - A rash of 'Bieber fever' cases broke out around the Tacoma Dome Tuesday afternoon.

Thousands of fans, mostly female, lined up hours before doors opened for the Justin Bieber concert. More than 23,000 were expected to attend the show.

Tacoma is one of Bieber's first stops on his Believe tour. He'll be performing with Carly Rae Jepsen, who sings the often parodied song Call Me Maybe.

We all have a passionate love for this kid, said Kailey Johnson, 14, from Spokane.

She and three friends came into town Monday from Spokane.

Johnson said there's lots to love about the 18-year-old Bieber.

His looks, his voice, he's just everything, said Johnson.

Some parents who dropped off their kids at the Tacoma Dome spent the concert across the parking lot at the LeMay-America's Car Museum.

The museum's restaurant stayed open late Tuesday, offering the kind of drinks Bieber - and most of his fans - aren't old enough to drink.

The concert starts at 7:00 p.m., with doors opening at 5:30 p.m.

Commuters should expect heavy traffic on both north and southbound I-5 through Tacoma most of the evening.

Two weeks ago, Bieber made headlines when he threw up twice on stage in Phoenix.

Bieber is the second most popular person on Twitter with 28 million followers. Already he's tweeted about tonight's show: thanks for letting me live my dream and do what i love everyday. tacoma...see u tomorrow. #BELIEVE

He was in Portland Monday night and also tweeted about that show: that was LOUD!! Portland...we killed it! #winning. haha. #BELIEVEtour

KING 5's Drew Mikkelsen and Lindsay Chamberlain contributed to this report.

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