Shinee (written as SHINee ;; read as ; shiny}} is a group of 5 members (from left to right ; onew,taemin,jonghyun,minho,key)  under the label of Sm entertaiment.

They made their debut on May 25, 2008 on SBS's Inkigayo with their single, "Replay" (Korean: 누난 너무 예뻐 (Replay) or noona neomu yeppeo ; noona you're so pretty}}

Since their debut, Shinee has released three full-length albums, four mini-albums, one live album and various singles. They have also won many awards, held a concert tour and starred in their own reality shows. Shinee is considered to be a fashion icon having started the "Shinee Trend. They made their Japanese debut on June 22, 2011 by releasing a Japanese version of their single, Replay,followed by their first Japanese studio album, The First on December 7, 2011.

source ; wikipedia