Kim Kardashian Hits VMAs Without Hubby Kris Humphries

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Honeymoon's over!

Kim Kardashian turned up at Sunday's MTV Video Music Awards at the Nokia Theater in Los Angeles -- but Kris Humphries didn't.

The 30-year-old reality star made her first Stateside appearance since her quickie honeymoon on Italy's Amalfi Coast. Her date? Robin Antin, the Pussycat Dolls creator.

Before taking the stage herself, Kardashian sat in the show's first row just two seats away from Taylor Lautner -- and happily chatted with pal Maria Menounos during a commercial break.

The star, who spent just a few days of R&R in Italy with Humphries, 26 (they wed Aug. 20 in Montecito, Calif.) presented the Best Male Video to another buddy: Justin Bieber.

Tell Us: What'd you think of Kim's VMA look?