Sirius astrological symbol was listed by Heinrich Cornelius Agrippa. Many cultures have historically attached special significance to Sirius, particularly in relation to dogs. It is often colloquially called the "Dog Star" as the brightest star of Canis Major, the "Great Dog" constellation. It was classically depicted as Orion's dog. The Ancient Greeks thought that Sirius's emanations could affect dogs adversely, making them behave abnormally during the "dog days," the hottest days of the summer. The Romans knew these days as "dies caniculares", and the star Sirius was called Canicula, "little dog." The excessive panting of dogs in hot weather was thought
Summer Special: Pinocchio / Hot Summer with the group wearing all white, walking slowly towards the camera. The video then cuts to another set with close-up shots of the group revealing electric blue outfits, topped with elaborate accessories. A street scene is also featured, where the group wears red outfits in front of the star-shaped prop while throwing paint over the buildings and at the camera. The video ends with the desert as the camera pans back. On May 30, 2015, SM Entertainment announced that the group will release their first Japanese single titled "Summer Special: Pinocchio / Hot Summer", on July 22, 2015. The single