Big Bang's first EP Always further established the group's popularity in South Korea, with the single Last Farewell topping online charts for 8 consecutive weeks, sold over 5 million digital downloads. The group's leader, the then 20-year-old G-Dragon produced and wrote the lyrics for all tracks on Hot Issue. The song is a blend of trance hip-hop beats and pop melodies. The song also features rapping by G-Dragon and T.O.P and melodic vocals from Taeyang, Daesung, and Seungri. Crazy Dog features synthesizers and a sampling from Seo Tai Ji & Boys' song In My Fantasy.Last Farewell won several awards, including Song of the Month at Cyworld Digital Music Awards.
The EP sold over a 100,000 copies in South Korea.