2009, Year of Us is the third extended play (EP) by South Korean boy group Shinee.

[2] In an interview with Big Communications representative Jung Young-jin, it was revealed that because of its catchy hooks and repetitive nature, "Ring Ding Dong" was named the number one banned song before college entrance exams in South Korea.

It was their third EP, with their last being Romeo in May 2009, and was supposed to show a new style for the group as well as the vocal talent of the members.

[2] Misha Gabriel, who previously worked on the group's song "Amigo" in 2008,[15] also choreographed "Ring Ding Dong".

[16] The music video was shot in early October on a set in Namyangju, Gyeonggi Province, and was directed by Cho Soo-hyun.