Unbelievable (simplified Chinese: 不可思议; traditional Chinese: 不可思議; pinyin: búkěsīyì) is the 9th album of the Taiwanese R&B artist and composer, Leehom Wang, and was released on 15 October 2003.

Although keeping his usual R&B grove, Wang decided to move away from his previous rock image and focus on hip-hop.

During the world tours, Wang had hinted that he was approaching to a new style of music in his new album by incorporating hip-hop beats in some of his rock songs.

Under this album, Wang won Best Producer of the Year at the 15th Golden Melody Awards in 2004.

This was the second time he was granted the honor, the first being at the 10th Golden Melody Awards in 1999, under his 1998 breakthrough album, Revolution (公轉自轉).