Pike Place Market is 100 years old! Celebrate the centennial on Friday with free Starbucks coffee and Le Panier onion tarts for breakfast, a championship salmon toss and the Market Party concert, starting at 6:30 p.m. Performers include members of Pearl Jam, Harvey Danger and the Presidents of the United States of America. (And don’t miss the super-talented relative newcomer Choklate.) The party’s at Victor Steinbrueck Park, 2001 Western Ave. at the north end of the market. Pikeplacemarket.org has all the details.