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Justin Bieber

Humberto Carreno/startraksphoto.com

Oh no! Not the Biebs!

While debuting his new fragrance, Someday, at Macy's Herald Square in Manhattan, Justin Bieber was tackled to the floor by an unidentified man.

Why would someone do such a thing?!

For protection!

The young singer was nice enough to go out in the shopping plaza and greet fans who weren't able to make it to the unveiling, and someone had to ruin the party. As the heartthrob was exiting the doors, a man leaped over a metal barrier and knocked him to the ground.

But what people didn't know is that the man was an undercover officer!

According to Justin's rep, when the crowd started to get a little chaotic, the officer leaped to protect the singer. The problem was that Bieber and his security were unaware who this guy was.

Whoops!

E! News is told it was a misunderstanding, and Justin is OK.

(Originally published June 23, 2010, at 3:30 p.m. PT)