Lou Gramm (born Lou Grammatico May 2, 1950 in Rochester, New York) is an American rock music vocalist and songwriter, best known as the lead vocalist for the rock band Foreigner, but who also had a successful solo career.

Gramm sang lead vocals on all of Foreigner's hits including the rock songs "Feels Like The First Time", "Cold As Ice", "Hot Blooded", "Urgent", "Double Vision", "Juke Box Hero", "Head Games", "Dirty White Boy" and "Say You Will", as well as the hit ballads "Waiting For A Girl Like You" and "I Want to Know What Love Is".

In 1987, during Foreigner's hiatus, Gramm released the album Ready Or Not which brought him positive critical reviews and a top five hit single with "Midnight Blue". This was followed by a second solo effort Long Hard Look, which brought a Top Ten hit "Just Between You and Me", and "True Blue Love", which reached the Top 40. Gramm also performed the title song from the 1987 movie The Lost Boys, titled "Lost in the Shadows".