Tonight’s theme on “American Idol” is “Songs of the Cinema” and director Quentin Tarantino is this week’s mentor.

Adam Lambert sang Steppenwolf’s “Born To Be Wild,” soundtrack from the 1969 film “Easy Rider” starring Peter Fonda, Dennis Hopper and Jack Nicholson.

His performance was okay, but his rock wail is beginning to irritate me. Simon liked the vocal but warned that Adam probably turned off a large segment of the audience. Too “Rocky Horror Picture Show,” Simon said, adding that it won’t be as popular as last week’s performance.

Steppenwolf is a rock band from Toronto, Canada that helped establish heavy metal music in the late 60s. The band enjoyed global success from 1968 to 1974, but creative differences led to the end of the core lineup. Today, lead singer John Kay is the only original member left.

VIDEO: Adam Lambert (Born To Be Wild)