Neha Kakkar once auditioned for ‘Indian Idol’. Judges like Anu Malik, Farah Khan, and Sonu Nigam were not impressed. Anu Malik even slapped himself. Years later, Neha found success with ‘Second Hand Jawaani’. She then delivered many hits. Songs like ‘Kaala Chashma’ and ‘Dilbar’ made her famous. She became a household name in Bollywood.