Shinee World 2012 was the first Japan nationwide concert tour by South Korean boy group Shinee to support their first Japanese studio album, The First. The tour kicked off in Fukuoka on April 25, 2012, and ended in Hiroshima on July 1, 2012, with a total of 20 concerts in seven cities. It attracted 200,000 concert-goers, setting a new attendance record for the first Japan tour of a Korean artist.

The First is the first Japanese studio album by South Korean boy group Shinee. The album was scheduled for release on November 23, 2011; however, it was delayed to December 7, 2011, in Japan under EMI Music Japan. The album features three previously released singles, "Replay", "Juliette" and "Lucifer", all of which ranked within the top three on the Oricon Singles Chart.