Blake Lively & Leonardo DiCaprio Split

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After only five months of dating, Blake Lively and Leonardo DiCaprio have called it quits, reps for both stars tell Us Weekly.

The reps adds that the A-list duo, "remain friends."

The two were first spotted getting snuggly aboard Steven Spielberg's yacht in Monte Carlo on May 17 during the Cannes Film Festival. In the subsequent months, the 24-year-old Gossip Girl star and the 36-year-old Inception actor carried on a whirlwind romance that spanned the globe. They were spotted everywhere from Venice, Italy to Anaheim, CA. to NYC.

Dicaprio is currently filming The Great Gatsby, also starring Carey Mulligan and Tobey Maguire, in Sydney, Australia. Lively is set to star in the Oliver Stone pic The Savages, slated for 2012.