When Shakira was four, her father took her to a local Middle Eastern restaurant, where Shakira first heard the doumbek, a traditional drum used in Arabic music and which typically accompanied belly dancing. She started dancing on the table, and the experience made her realize that she wanted to be a performer. She enjoyed singing for schoolmates and teachers (and even the nuns) at her Catholic school, but in second grade, she was rejected for the school choir because her vibrato was too strong. The music teacher told her that she sounded "like a goat". At school, she was often sent out of the class because of her hyperactivity (ADHD). She says she had also been known as "the belly dancer girl", as she would demonstrate every Friday at school a number she had learned. "That's how I discovered my passion for live performance," she says.