Robert Pattinson 'Dissed' by Beyonce at Concert Meet-and-Greet, Kristen Stewart 'I Heart Rob' Prank Goes Viral [VIDEO]: 'Twilight' Ex-Lovers Drama, Taunts Continue

Robert Pattinson and Kristen Stewart broke off their "Twilight" romance a few weeks ago, but the Robsten drama continues! Following the highly-publicized split, R-Patz was spotted hanging out with Elvis' stunning granddaughter Riley Keough (and K-Stew was evidently devastated). Some prankster added salt to Stewart's heartbreak wounds by scribbling "I [Heart] Rob" on the dusty top of her pickup truck. The 23-year-old starlet was NOT amused. Meanwhile, witnesses claim that R-Patz was totally dissed by songstress Beyonce at a recent concert meet-and-greet... Queen Bey totally denied the "Cosmopolis" heartthrob! Read on for more details.

Poor K-Stew - everywhere she goes she's reminded of her ex beau. Avid paparazzi recently stalked-out the actress in an LA parking lot, where someone had scrawled "I [Heart] Rob" in the dirt on the hood of her truck. Stewart didn't think the joke was funny. Apparently she "lashed out" at the photogs... but in reality, she just said "f#ck you" before hoping into the vehicle and driving away. Fair enough - it's not like she had a major freak-out.

While K-Stew sulks, R-Patz seems to be enjoying the single life. He attended Beyonce's "Mrs Carter Show" World Tour concert in LA with some friends on July 1. According to alleged insiders for In Touch, Pattinson "was trying to get into the Beyoncé meet and greet, but he didn't have the right credentials and he didn't make it in!" Another Hollywood Life source explains, "After Rob was turned away, he and his friends wouldn't take no for answer... They tried to sneak into the meet and greet!" They were ultimately denied, so R-Patz "waited for 10 minutes at the door and security [still] said no."

Does that really sound like something Pattinson (or Beyonce, for that matter) would do?

Gossip Cop got hold with another source close to the sitatuon, who claims that the whole meet-and-greet fiasco was a total fabrication. Pattinson simply "chatted" with Bey for a few minutes, and the duo DID take some pics together.

So that's that.