"Lollipop" is a song by Big Bang and 2NE1, created to promote a cellphone by LG Cyon. It interpolates the 1958 hit "Lollipop" written by Julius Dixson and Beverly Ross. The song achieved the top spot on various online charts, including a four week run at number one on music portal Mnet. "Lollipop" was used to debut 2NE1 unofficially, as it does not serve as their debut single. 2NE1 followed up with their official debut single "Fire".

Sandara Park, known mononymously as Dara (다라), is a South Korean singer, actress and television presenter. She rose to fame in the Philippines as a contestant on the talent show Star Circle Quest in 2004, after which she had a successful acting and singing career before returning to South Korea in 2007. She made her South Korean debut in 2009 as a member of the K-pop group 2NE1, which went on to become one of the best-selling girl groups of all time before their disbandment in 2016. Park is one of the most popular South Korean celebrities in the Philippines and is recognized as one of the leading figures in the spread of the Korean wave into the country.