LOS ANGELES, Calif. --

“The Wackness” star Mary-Kate Olsen and “The Hills” leading man Spencer Pratt have known each other since high school – and apparently been adversaries for just as long.

In a 2007 Details article on fellow “Hills” man Brody Jenner, Spencer revealed that he earned $50,000 in high school by selling a photo he snapped of an underage Mary-Kate allegedly drinking at a party.

In the article, Spencer also brags about concocting self-promotional schemes for himself and Jenner that included dating each one of the “Hills” girls and having Jenner pursue Nicole Ritchie.

“We were ‘Entourage’ before ‘Entourage,” he told Details.

The Olsen-Pratt feud flared up last week, with Mary-Kate recalling his high school temper on the “Late Show With David Letterman” and Spencer responding in Us Weekly by calling the actress a “troll.”

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