It looks as though we've got some diva drama here: Rumor has it that Jennifer Lopez "snubbed" fellow chart topper Beyonce during the MTV Video Music Awards on Sunday night.

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According to Star Magazine on Tuesday, Lopez left the show during the middle of Beyonce's performance. While she and her entourage were making their way out the door, lights quickly flashed to her section to show her empty seats.

An eyewitness tells the site, "It was incredibly rude of her to leave in the middle of Beyonce's performance. She sat through the entire two-hour show, but then decided that she couldn't stand to wait five more minutes to finish watching the most impressive show of the night."

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The source added that Lopez didn't look embarrassed to be leaving by explaining, "Other audience members were really upset by Jennifer's disruption. People were rolling their eyes as she made her way backstage, because she was blocking their view and they were missing the highly anticipated performance."

Meanwhile, it looks as though Lopez might have gotten back together with her ex Casper Smart as she brought him as her date to the awards show. She was even spotted sharing a bag of Skittles with him.

Lopez and Smart have neither confirmed nor denied the rumors that they are getting back together, even though they've been spotted out and about several times in the past few weeks.

Tags: Beyonce Jennifer Lopez