Singer-songwriter Kenny Loggins explains the origins of several hit songs, including “Footloose” and “Danger Zone,” featured in “Top Gun.” The doc also chronicles the music legend’s childhood as a shy, gawky, and unpopular kid with low self-esteem growing up in California; Loggins’ key role in the folk-rock movement with Loggins & Messina, a pop-rock duo he formed with Jimmy Messina in the 1970s; and the singer’s rise to fame in... see more