Justin Bieber Selena Gomez
3:37 pm, April 22nd, 2012
PHOTOS 
(GettyImages)
Justin Bieber spent Saturday filming the video for his song, "Boyfriend," along with a long-haired brunette in short shorts.
But it wasn't girlfriend Selena Gomez.
It was an actress, however, who could have easily passed as her twin (photos).
That's not to say that Gomez was nowhere around, as Bieber got close with her lookalike.
The actress-singer stopped by the video's set, where they couple shared some real PDA.
PHOTOS BELOW
Just last week, Bieber and Gomez smooched for the "Kiss Cam" at a Lakers game.
A few days later, Gomez told Ryan Seacrest on his radio show that it was "probably the most humiliating thing that's ever happened to me!"
Check out photos here of Bieber and his real-life girlfriend kissing on the "Boyfriend" set.
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