Gaon Albums Chart
"Before U Go" debuted at number one on South Korea's "Gaon Albums Chart" and the "Hanteo Chart", selling 55,243 copies by July 2011. By the end of the year, "Before U Go" sold 60,709 copies. Including "Keep Your Head Down", the albums collective sold over 324,000 copies in South Korea and 89,000 copies in Japan.