Ralph Macchio on 'Karate Kid,' 'Cobra Kai' and auditioning for 'Back to the Future'

In his new memoir, "Waxing On," Ralph Macchio reveals that he met with Steven Spielberg and Robert Zemeckis about playing Marty McFly in "Back to the Future" but his New York accent worked against him. Macchio delves into his thoughts on "Cobra Kai," his childhood love for Gene Kelly musicals, his relationship with Pat Morita and a never-made sequel that would have paired the Karate Kid with Sylvester Stallone in this "Under the Covers" interview. More: https://yhoo.it/3s1DAC2 ** SUBSCRIBE: https://yhoo.it/2nLr2NW​ ** Follow us on: Facebook:   / yahooentertainment   Instagram:   / yahooentertainment   Twitter:   / yahooent