The concept was created by Sohee and Yubin who describe it as a "more sophisticated and mature, modern feel."

[5] Stylistically, the Wonder Girls used a retro 1980s denim look to promote the song as shown on the single cover and in the accompanying music video.

An exclusive physical version of the EP was released in the United States in Justice retail stores.

[9] The video was filmed in Korean, English, and Chinese, and features cameo appearances by comedian, podcast host, and actor Bobby Lee and music producer Park Jin-young.

[11] "2 Different Tears" stayed at the top of the chart for three consecutive weeks until it was replaced by IU and Seulong's "Nagging" on June 6, 2010.