In 2009, on April 7, Dr. Sin opened act for the American band Kiss at Anhembi Arena to an audience of over 40,000 people. The band played several of their classics, as well as songs from cd "Bravo". Recently the band performed alongside the São Paulo State Symphonic Band at Sala São Paulo, and they made several versions of Rock classics drawing great public and media attention, which made them the subject of various television programs. The Symphonic Rock project remains a success and with marked performances.