The playful sibling of the Boston Symphony Orchestra, the Pops was founded in 1930 by Arthur Fiedler, who in his 50-year tenure as conductor organized the first Fourth of July concert and ushered the Pops into its status as the most recorded orchestra in history. Fiedler was succeeded by composer and Hollywood royalty John Williams; today the Pops are helmed by Keith Lockhart. In addition to performances at Symphony Hall, the Pops plays the Fourth of July extravaganza at the Hatch Shell, holiday programs in December, and summer shows at Tanglewood in western Massachusetts.