Shirley started by posting her video of her singing some very popular song. Later within no time, she became the new sensation of the town. She was later named as the pajama pop star. She got this name because of her video in which she was seen singing in a pajama . In one of her interview, she said that she developed the hobby of singing because of her grandmother.

Her grandmother uses to play old songs on the radio when Shirley was a little kid. Her voice is very sweet and pleasing to hear. Many of her songs are a retrieve version of the old songs. Songs like Kuch na Kaho reprised version of lag ja gale, Sanam re, jab koi bat bigad Jae, etc show excellent performance of her voice. She has collaborated with many famous singers like Sanam puri and Atif Aslam. Her music video with Atif Aslam on the song jab koi baat bigad Jae was shoot out of India and was loved by the audience.

With Sanam puri, she has sung songs like Kuch na Kaho which was just a treat to our ears. Not only recordings but she performs live too. She has many international concerts and they are always sold out. Her popularity is not only restricted in India but also outside the country. She has given voice to many advertisements like Airtel. Apart from her passion for singing she also loves dancing and is a fan of Bollywood. She is a common crush among the boys. Her pretty hair and dressing sense is just icing on the top. She has sung some Punjabi songs. The song is vaari nadan pariende and tum ho tho was at a series mixtape of which Shirley was a part.