Bowie was first impressed with Presley when he saw his cousin Kristina dance to "Hound Dog" soon after it was released in 1956. According to Kristina, she and David "danced like possessed elves" to records of various artists. By the end of the following year, Bowie had taken up the ukulele and tea-chest bass, begun to participate in skiffle sessions with friends, and had started to play the piano; meanwhile, his stage presentation of numbers by both Presley and Chuck Berry—complete with gyrations in tribute to the original artists—to his local Wolf Cub group was described as "mesmerizing ... like someone from another planet". Having encouraged his son to follow his dreams of being an entertainer since he was a toddler, in the late 1950s David's father took him to meet singers and other performers preparing for the Royal Variety Performance, introducing him to Alma Cogan and Tommy Steele. After taking his eleven-plus exam at the conclusion of his Burnt Ash Junior education, Bowie went to Bromley Technical High School.