Seal was born Seal Henry Olusegun Olumide Adeola Samuel. "Olusegen" means "god is victorious." His parents are both immigrants of Nigerian and Brazilian descent.
Despite various rumors, the scars on Seal's face are the result of a type of Lupus called Discoid lupus erythematosus – a condition that specifically affects the skin above the neck.
Seal proposed to supermodel, Heidi Klum, in a quinzhee, which was made by hollowing out a pile of snow that has already settled. It was built on a glacier in Whistler, British Columbia. The two married on May 10, 2005 on Mexico's Costa Careyes near Seal's home. Of his marriage, Seal revealed, "Each year, Heidi and I get remarried. It's a great party, but for about an hour, we go off on our own down to a private beach. We sit there with the kids and read vows to each other as the sun sets. It's a very special moment to us."
When referring to his music, Seal has been quoted as saying, "My songs are like kids, I love them all, I encourage them to grow, to reach their full potential, and then send them out into the world. " He added, "If you get too comfortable, then the listener gets too comfortable and everyone's bored."
Seal has identified Marvin Gaye, Stevie Wonder and Jimi Hendrix as key influences.
Seal performed the duet, "Wedding Day," with his wife, Heidi Klum at the Victoria's Secret fashion show in 2007. Other performers included the Spice Girls and wil.i.am from The Black Eyed Peas.
Seal's 2001 album, Togetherland, was never released. The official cause was that Seal just didn't think the album was up to his standards. Other reports say that the record label turned down the album because they didn't think it would be commercially successful. However, one single from the album, "This Could Be Heaven," was released as a single and also appeared in the Nicholas Cage film, The Family Man.