Chloe Green partied with Jennifer Lopez right before dating Marc Anthony.

The Topshop heiress - who is reportedly in a relationship with the Latin singer - attended the same event as his ex-wife in Los Angeles just days before jetting off to New York City to meet up with Marc.

Chloe celebrated the launch of Topshop's first LA store at Cecconi's restaurant, where the 'On the Floor' hitmaker was a guest, before flying to the Big Apple to meet the 'Rain Over Me' singer with whom she had allegedly been flirting online for some time.

A source told the Daily Mirror newspaper: ''It just so happened that Chloe was partying with J.Lo as things hotted up with Marc. She has been seeing footballer Djibril Cisse but things weren't working out.

''She's really into Marc and is fond of his twins, too. After New York, they returned to California where she now wants to stay with him for a few months.''

The 21-year-old 'Made in Chelsea' star has known Marc - who divorced Jennifer in 2011 - for several years but the pair only became romantically involved recently, exchanging flirty messages before the 44-year-old singer invited Chloe to visit him in New York for a few days.

The pair jetted back to LA earlier this week where they spent the day at Disneyland with Marc's two children with the 'Parker' actress, five-year-old twins Max and Emme.