1 – Since 2007 is the debut studio album by South Korean boy band BigBang, released on December 22, 2006 through YG Entertainment.

The quintet held their official debut on August 19, 2006 at the Gymnastics Arena in Seoul Olympic Park during the YG Family 10th Year Concert, which was broadcast the following month.

[4] Their first single "Big Bang", released shortly thereafter, contained the songs "We Belong Together", featuring label mate Park Bom; "A Fool's Only Tears" (눈물뿐인 바보; Nunmulppunin Babo); and "This Love", an remix of the American pop rock band Maroon 5 song, rewritten and performed by G-Dragon.

[7] The second single, "Big Bang Is V.I.P", was released in September, eventually topping 32,000 copies sold.

[7] The group held their first concert, The Real, that December, followed by their debut album, BigBang Vol.