IA THE WORLD ～光～ (Hikari / Light) is a compilation album by TEAM Entertainment, and is a part of the IA PROJECT. It contains 12 tracks, all sung by IA. Several notable producers are featured, such as Last Note., Hitoshizuku-P×Yama△ and kemu.
A crossfade of the album can be heard on Niconico.
The official album website is available here.