Debbie Boone in 1977 for the movie of the same name. http://en.wikipedia.org/wiki/You_Light_U... You Light Up My Life was a song written by Joseph Brooks and performed by Kasey Cisyk. Source(s): http://en.wikipedia.org/wiki/You_Light_U...
Brand Extension Definition: The Brand Extension is the marketing strategy wherein a new product is launched under the existing brand name. The category in which product is launched may be related or unrelated to the brandâs current category.
extension - an addition to the length of something. elongation. addition, add-on, improver - a component that is added to something to improve it; the addition of a bathroom was a major improvement; the addition of cinnamon improved the flavor 12. extension - an addition that extends a main building. annex, annexe, wing