Lata Mangeshkar was an Indian playback singer and occasional music composer. She is considered to be one of the greatest and most influential singers of the Indian subcontinent. Her voice was one of the unifying elements of the people of India, Pakistan, Bangladesh and Nepal. Her contribution to the Indian music industry in a career spanning eight decades gained her honorific titles such as the "Queen of Melody", "Nightingale of India", and "Voice of the Millennium".

Asha Bhosle is an Indian playback singer, entrepreneur, actress and television personality who predominantly works in Indian cinema. Known for her versatility, she has been described in the media as one of the greatest and most influential singers in Hindi cinema. In her career spanning over eight decades she has recorded songs for films and albums in various Indian languages and received several accolades including two National Film Awards, four BFJA Awards, eighteen Maharashtra State Film Awards, nine Filmfare Awards including a Lifetime Achievement Award and a record seven Filmfare Awards for Best Female Playback Singer, in addition to two Grammy nominations. In 2000, she was honoured with the Dadasaheb Phalke Award, India's highest award in the field of cinema. In 2008, she was honoured by the Government of India with the Padma Vibhushan, the second-highest civilian honour of the country. The Guinness Book of World Records acknowledged Bhosle in 2011 as the most recorded artist in music history.