One Direction's Harry Styles may have recently admitted his crush on "Vampire Diaries" star Nina Dobrev but that hasn't stopped him from pursuing other beautiful women in the business. In fact, Harry was spotted in London with a familiar blonde. Are Cara Delevingne and Harry Styles back in the dating business?

Harry Styles is known to have dated a handful of models of which include British model, Cara Delevingne. The two called it off early last year but it looks as if things have heated up between the two once more. Harry and Cara were spotted in London last night watching the "West End's Book of Mormon" a musical.

A "Directioner" was quick to snap a photo of the two that night. Proof that the woman with Harry was Cara was the iconic lion tattoo on her finger found on her right hand. 1D fans were quick on the update claiming it was simply a "friendly" date and nothing romantic of sorts.

For starters, Harry and Cara have always been seen together on multiple occasions. The one time Harry wasn't spotted with Cara was during her 21st birthday in which Styles had to "ask" for an invite from the model.

"Harry kept hearing about Cara's party through their mutual pals. He started to wonder what he'd done wrong," explained the source, adding, "So he texted asking Cara why he wasn't invited because he thought they were still friends. He then cheekily added: 'Can I come?'"

"Naturally she was mortified, and quickly apologised. Cara told him she'd only left him out because she thought he'd be too busy on his tour to come anyway. But Harry assured her he can get a private jet to the rave on the 24th, which is two days after her birthday," continued the source.

Obviously, Harry and Cara are on great terms. Could this friendship blossom once more into love? "Directioners" can only hope. Of course, fans are claiming Cara is truly the one girl for Styles of whom he constantly "mentions" in interviews.

"There is... I've got someone that I like, yeah. There's just someone in mind," stated Styles in an interview for Fabulous magazine, adding, "There's always someone who's the person you think about if something happens. But yeah. There's nothing really happening at the moment."