No. 1 (BoA album)

No. 1 is the second Korean-language studio album (third overall) by South Korean recording artist BoA. The album's composition and arrangement was handled by several music collaborators, such as Yoo Young-jin, Kangta, Ahn Ik-soo, Sigurd Heimdal Rosnes, among others. Released through SM Entertainment on April 12, 2002, No. 1 marked BoA's return to South Korea following the release of her debut Japanese album Listen to My Heart a month prior, which saw widespread recognition in Japan.

No. 1 was a commercial success in South Korea, topping the monthly charts compiled by the Recording Industry Association of Korea (RIAK) for two consecutive months. It was the year's fourth best-selling album in the country, with sales of over 540,000 copies. In Japan, the album peaked at number 24 on the Oricon Albums Chart and sold over 14,000 copies.

The title track "No. 1" was released in conjunction with the album and received promotions on domestic music programs. It won various awards in South Korea, including the Most Popular Music Video (daesang) at the 2002 Mnet Music Video Festival and Grand Prize (daesang) at the 2002 SBS Gayo Daejeon.