Ri, Zo, Sim, and Suchi are said to be India's first mainstream girl group in more than 20 years. The foursome - Ri, Sim (Simran Duggal), Zoe (Zoe Siddharth), Suchi (Suchita Shirke) - have a strong history of female singers, with soloists such as Lata Mangeshkar, Asha Bhosle and Shreya Ghoshal.