Hollywood is the best place to pick a fight. Rest assured that any little word can start a dispute or scandal. This time Mary Kate Olsen said something about someone and that someone was Spencer Pratt. As neither of them chose to be the bigger person and drop the fight, the story goes on.

While Olsen was on the “Late Show with David Letterman,” she started to talk about her new movie “The Wackness.” As the dialogue continued, Olsen mentioned Spencer Pratt and his bad temper, adding that he was “wormy,” reported the Los Angeles Times.

The reaction from the Reality star was very prompt. He suggested Olsen was a “troll” and felt sorry that she had to spend her life as the “less cute twin.”

“I know I've made it in Hollywood when a famous troll is talking about me on Letterman,” Pratt told told Usmagazine.com. He also said that Olsen studied at Campbell Hall in North Hollywood and he went to Crossroads School in Santa Monica.

I guess things are somewhat even, one for Olsen, one for Pratt. We’re looking forward to see the next move, although it would be more interesting to find out more about Olsen’s new movie, directed by Jonathan Levine, which is set to be released in August. Ben Kingsley and Famke Janssen are two of the actors who will play in “The Wackness.”