The song was a commercial success in South Korea, achieving the number one spot on both the weekly and monthly Gaon Digital Charts and was ranked the fourth best-performing single overall in the country in 2010.

In Japan, the song peaked at number 12 on the weekly Oricon Singles Chart and sold more than 21,000 physical copies.

[1] Musically, the song is composed in the key of B major with a tempo of 128 beats per minute, and has a runtime of 3:36.

[2] "Go Away" was promoted as part of the triple "title tracks" series for To Anyone, alongside "Clap Your Hands" and "Can't Nobody".

The Korean music video for the song is six minutes long and was directed by Cha Eun-taek.

The short version of the Japanese music video was uploaded to the group's official YouTube channel on November 17, 2011.

The Korean music video opens with CL in a cafe with her boyfriend (Song Jae-rim).

CL's boyfriend is stressed out about dating her still and calls off the relationship, telling her not to mess with him anymore or else he'd kill her before getting up.

A distressed CL puts her glasses on, bumps into a girl, then accidentally bangs into a door.

The next chorus shows Dara drinking with a devastated CL with Minzy outside the cafe standing in rain with an umbrella.

CL states about the jacket she gave to him to where her ex slaps her and starts shouting at her that she needs to stop messing with him.

[13] The song was performed as one of three promotional singles through the month of September along with "Clap Your Hands" and "Can't Nobody".

The group began Japanese promotions for their debut single by performing the song at Happy Music on November 21, 2011.