Hassan Alaa Eddin (), commonly known as Chouchou or Shoushou () (26 February 1939 – 2 January 1975), was a Lebanese actor/singer/comedian.
Born in Joun, he founded the national theater, and wrote and played in many TV movies. He also composed and sang children's songs and wrote such plays as Alef B Boubeye, Shehadin Ya Baladna and Nana il Hilwe.
Google celebrated Shushu by placing a doodle on its homepage on February 26, 2014, to mark the 75th anniversary of his birth.
Hassan Alaa Eddin died, aged 35, from a heart disease.