Kristin Cavallari looked for drugs at the Super Bowl?

Rumors are going around that the Hills star Kristin Cavallari has a serious problem when it comes to drugs.

Sources are saying that ristin spent her entire Super Bowl weekend in Miami looking to score cocaine. "She was wasted the entire time," a source says. "She was going around to everyone, asking them to score her some coke."

Even close acquaintances have piped in, adding, "Her issues are becoming apparent to everyone. She's getting scary-thin and not showering regularly...She's clearly unhealthy."

One rumor said Kristin’s co-stars on The Hills are urging her to go to rehab. "She doesn't think she has a problem," a source says. “Her drug problem finally became an unavoidable conversation topic on film. If MTV uses the footage, it will be clear to everyone."

But one of Kristin's friend denies the ruomor calling the 100% false. "I have never seen her do coke. When she was in Miami she was partying till like 3 a.m. and didn't do drugs once. And if there was anytime to do it, it would have been then!"