Despite being the all-natural actress for countless films, sources claim Lily Collins is what critics would call "diva" material. Reports claim that "The Mortal Instruments" star is "terrible to work with" but that certainly isn't what Jamie Campbell Bower experienced during the shoot for "City of Bones."

Despite having split in August of this year, the former "Jamily" couple still remain good friends. Before Jamie disappeared back into London, the "Sweeney Todd" actor had a few things to say about Collins.

"We're tight, yeah. Lily and I are very, very close. Very close. Always have been, always will be," said Bower in an interview with MTV News.

As adorable as it sounds, new reports claim Lily isn't at all the "sweet" girl that she is. A source claims to Star Magazine, Collins' good girl image is just an act.

"Lily Collins will completely ignore anyone who isn't A-list. And at a recenty (sic) party in Bel Air, she literally threw her cocktail on the carpet because she didn't like it! Everyone was horrified," stated the source.

"One editor cancelled a photo shoot because she heard Lily was terrible to deal with. She'll dema[n]d to bring her own stylist and is so prissy that she refuses to use the bathroom that's been used by someone else. Her ego is going to ruin her career if she doesn't get herself in check!" continued the source.

Fans of Collins, of course, know better that the reports by Star Magazine are false. If anything, Lily Collins is anything but a diva. Proof is that she's currently helping out ex-beau, Zac Efron, get his life back on track.

"Lily is the perfect girl for Zac to be dating right now. She's young, gorgeous and smart - but more than anything, she doesn't drink or use drugs. Zac knows if he wants to save his career and his life, he needs to stay sober and it's making his transition a lot easier to be dating someone like Lily," stated the source.

Given Zac and Lily were linked in 2012, it's no surprise the couple could re-kindle their romance now.

"He used to date Lily and she called him to lend her support after hearing about his rehab stint," said the source to Heat Magazine. "They never got closure on things because his life was out of control, so it's easy for them to pick up where they left off," the source added.

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