Quratulain Balouch, commonly known as QB, is a Pakistani singer and songwriter who was born on March 4, 1988, in Aradan, Iran. She gained popularity with the release of her debut single, "Akhian Nu Rehn De," in 2011, which became an instant hit in Pakistan and established her as one of the most promising young artists in the country.

QB's music is a blend of traditional Pakistani folk and contemporary pop and rock influences, and her songs often feature powerful vocals and emotionally charged lyrics. She has released several albums and singles over the years, including "Humsafar" (2011), "Woh Humsafar Tha" (2012), and "Kaari Kaari" (2016). Her music has been widely praised for its poetic lyrics and melodic sensibility, and she has been compared to legendary Pakistani singers such as Noor Jehan and Abida Parveen.

In addition to her music career, QB has also worked as a music composer and has composed music for various Pakistani films and television dramas, including the popular drama series "Humsafar." She has won several awards for her music, including the Pakistan Media Award for "Best Female Singer" in 2012 and the Hum Award for "Best Original Soundtrack" in 2016.

QB continues to be a popular and influential figure in the Pakistani music industry, and her music has a wide appeal among audiences in Pakistan and around the world. She is known for her passionate performances and her commitment to promoting Pakistani culture and music.