New singleton Paris Hilton tried her best to put her break-up from Benji Madden behind her by hitting a Los Angeles club on Wednesday - but quickly left when the apparent heartbreak got too much for her.

The socialite hit L.A.'s Crown bar with pals in a bid to banish her blues just hours after her split from the Good Charlotte rocker was confirmed by her publicist.

And despite the best efforts by her entourage to buck up her spirits - Hilton couldn't face partying and hurried out of the club after just 30 minutes.

A source tells Usweekly.com, "Her friends were trying to talk to her, and it looked like she was making an effort to talk with all of them even though you could tell she didn't feel like partying.

"She definitely didn't seem like her usual party girl self tonight. (She was) way more reserved and distracted, like her mind was elsewhere. She was trying very hard to appear carefree, but it was clear she didn't want to be there and was waiting for the right moment to make her exit."

Hilton and Madden announced their nine-month relationship had come to an end on Wednesday, when the hotel heiress' spokesperson simply stated the pair will "remain very good friends".