Secret (シークレット) is the 17th single by Goto Maki, and her last single as part of Hello! Project. The single was released in both limited and regular editions; the limited coming with a bonus DVD. The first press of the regular edition came with a photo card. The single reached #9 on the Oricon charts and charted for four weeks, selling 14,861 copies. The single V reached #9 and sold 4,162 copies.