Lou Gramm

Lou Gramm (born Louis Andrew Grammatico; May 2, 1950) is an American rock singer-songwriter, best known for being the lead singer of the rock band Foreigner from 1977 to 1990 and 1992 to 2003 during which time the band had numerous Top 5 albums and singles.
In 1992, Gramm, after having completed a stint in drug rehabilitation, became a born again Christian.