2009, Year of Us is the third extended play (EP) by South Korean boy group Shinee. It consists of six tracks and it incorporates alternative rock and hip-hop music genres. The digital version of the album was released on October 19, 2009, with a physical release on October 22. The title track, "Ring Ding Dong", was released on October 14, 2009, through various music sites.

Choi Min-ho, better known by the mononym Minho, is a South Korean rapper, singer, songwriter and actor. In May 2008, he debuted as a member of South Korean boy group Shinee which later became one of the best-selling Korean artists. Aside from group activities, he debuted as an actor in November 2010 in KBS2's drama special Pianist. He has since landed roles in television series such as Salamander Guru and The Shadows (2012), To the Beautiful You (2012), Medical Top Team (2013), My First Time (2015), and Hwarang: The Poet Warrior Youth (2016). He made his feature film debut in 2016 with Canola. As a soloist, he has released the digital singles "I'm Home" (2019) and "Heartbreak" (2021). He released his debut solo EP Chase in 2022.