"Hopelessly Devoted" is a song performed by Olivia Newton-John for the 1978 film Grease. It expresses deep feelings of love and longing, capturing the emotional turmoil of being devoted to someone who may not feel the same way. The song is characterized by its heartfelt lyrics and melodic structure. The track became one of the film's most iconic songs, showcasing Newton-John's vocal talent. It was written by John Farrar and received critical acclaim, contributing to the overall success of the Grease soundtrack, which remains popular in music history.