Did Justin Step Out on Jessica?

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Scandalous online rumors are circulating that Justin Timberlake was swapping spit with a woman who isn't his gorgeous girlfriend, actress Jessica Biel, at Manhattan nightclub Tenjune on Saturday night.

However, OK! has confirmed with multiple sources that the platinum-selling pop star wasn't even at Tenjune at the time in question. That would make it a little difficult for him to cheat on his gal-pal, yes?