Lead debuted on July 31, 2002 with the single "Manatsu no Magic".
[1] Their debut studio album, Life on da Beat, was released on April 23, 2003.
This would also be their last album with leader and lead vocalist Hiroki Nakadoi.
Their success on the Oricon Singles Chart would also increase, leading to a string of top-five releases for the next five years – something that they had not experienced as a group prior.
Songs that did not garner an official release, but were performed at live venues.