Shirley Setia was born in India and raised in Auckland, New Zealand and has since gone on to become a Bollywood singing sensation. After graduating from the University of Auckland, she worked as a marketing and publicity intern at Auckland Council. She discovered her passion for music over YouTube on a whim, when she took part in a contest conducted by T-Series. The entry was recorded in her bedroom while she was wearing pyjamas. She won out of thousands of entries and subsequently earned the sobriquet Pyjama Popstar by the New Zealand Herald.

Following that she began uploading videos onto YouTube, earning more than 3 million subscribers over time and collaborating with various other YouTubers across the world. Eventually, she decided to make music her full time profession and moved to Mumbai. After releasing several Bollywood covers and some of her own songs, in 2017 she made her Bollywood debut with Disco Disco from A Gentleman (2017). In 2018 she debuted in the PUnjabi music industry through the song Koi Vi Nahi.She has since worked with elebrated musicians such as Atif Aslam and Armaan Malik. Her 2020 releases include her debut feature film as ana actress, through Nikamma, starring Shilpa Shetty and Abhimanyu Dassani.