Chicago is an American rock band from Chicago, Illinois. Formed in February 1967, the group was originally known as The Big Thing and later Chicago Transit Authority, before becoming Chicago in 1969. Initially featuring guitarist and vocalist Terry Kath, keyboardist and vocalist Robert Lamm, drummer Danny Seraphine, saxophonist Walter Parazaider, trumpeter Lee Loughnane and trombonist James Pankow, the band added bassist and vocalist Peter Cetera in December 1967. The group has been through many lineup changes and currently includes four original members – Lamm, Loughnane, Pankow, and Parazaider (retired member since 2017) – plus drummer Walfredo Reyes Jr. (since 2012), saxophonist Ray Herrmann (since 2016), vocalist Neil Donell (since 2018), percussionist Ramon "Ray" Yslas (since 2018), guitarist Tony Obrohta (since 2021), Loren Gold on keyboards and vocals (since 2022), and bassist Eric Baines (since 2022).