Empire is the fourth full-length studio album by the American heavy metal band Queensrÿche, released on September 4, 1990. The album is Queensrÿche's most commercially successful release, reaching triple-platinum status. The primary single, the power ballad "Silent Lucidity", reached number 1 on the Mainstream Rock Tracks and number 9 on the Billboard Hot 100. "Silent Lucidity" was also nominated in 1992 for the Grammy Awards for Best Rock Song and Best Rock Vocal Performance by a Duo or Group. The album won a 1991 Northwest Area Music Award for Best Metal Recording.