SPF, or Sun Protection Factor ,is a measure of how well a sunscreen will protect skin from UVB rays, the kind of radiation that causes sunburn, damages skin, and can contribute to skin cancer.
LL Cool J was born James Todd Smith on January 14, 1968, in Bay Shore, New York, the son of Ondrea Griffeth (born January 19, 1946) and James Louis Smith, Jr. In an episode of Finding Your Roots, LL learned his mother was adopted by Eugene Griffith and Ellen Hightower.
LL Cool J with correspondent Michelle Miller. It's that self-confidence -- together with talent and a lot of drive -- which made him a rap star, then a movie star, then a prime-time star. And lately he's the face of the Grammys, after winning two of the awards himself. Tonight he'll host the show for the fourth time.