Her first single, “Mahiya” became popular when it appeared in the Indian film Awarapan.
On 25 November 2010, Khalid released her UK debut single “Be My Baby” along with the remix of the track done by British DJ Judge Jules. After meeting at a charity function, Khalid collaborated with the English–Norwegian boy band A1 for a single “Just 3 Words” and went on tour with them, performing in Norway and the UK. In 2011, Khalid was nominated as Best Female Singer at the Pakistan Media Awards.
In September 2013, she released the single “Boom Boom Danze” with Beenie Man.
She walked at the 2010 L’Oréal Karachi fashion week for BNS couture and in 2011 for Ammar Belal. She was featured in LOOK magazine in June 2011. The same month, she launched a café in Lahore, the AK Lounge