Seal Henry Olusegun Olumide Adelo Samuel (born February 19, 1963 in Paddington, London) is a British soul singer and songwriter. His name Olusegun means "God is victorious". Known professionally by his first name, Seal is known for his numerous international hits and his marriage to supermodel Heidi Klum.

Seal first came to public attention as vocalist on the Adamski single "Killer" in 1990. The single eventually reached number one in 1990 in the UK. Seal subsequently signed to ZTT Records and released his debut album (produced by Trevor Horn), self-titled Seal, in 1991. Two versions of the album are known to be in circulation: the original "premix" version and a second, more common version with an updated mix. This is attributed to the demand for a produced single rushing the final album edit, and as Seal puts it, his and producer Horn's "inability to let go."

System was released in the UK on November 12, 2007 and in the U.S. on November 13, 2007. Seal describes the album as more dance-oriented, apparently a return to the roots of his first album. On the track titled "Wedding Day", Seal sings a duet with his wife, Heidi Klum. The album's first single, "Amazing", was released on September 25, 2007, and was nominated for the "Best Male Pop Vocal Performance" Grammy at the 2007 50th Annual Grammy Awards.