New Delhi [India], March 15 (ANI/NewsVoir): Three blockbuster mentors, six singing challenges, 18 winners, one original music video, Smule 123 Riyaaz has taken singing enthusiasts by storm. The first three challenges of India's first-ever, digital-only, reality singing competition are already out and have resulted in thousands of entries from across the nation. Needless to say, it's a contest, you would not want to miss.