Unhinged NYC straphanger goes off on American Idol contestant as riders rally around subway performer

This subway performance got derailed in a hurry.A former “American Idol” contestant held his ground after being “attacked” by a disgruntled straphanger and won over a car full of straphangers on the A train in Manhattan, a viral video showed.Shane Dan Turner, 29, was busking between 125th Street and Columbus Circle Wednesday afternoon when a woman who claimed her ears were too sensitive for his music grabbed his tip money and drowned him out with her own loud wailing, according to the clip.“That was me being attacked by a mentally ill woman,” Turner said as he reshared the clip with an explainer at the end of it.The video starts with the woman seen tussling with Turner and pleading with other riders to “make him stop” playing, while sharing that she just “had surgery on my f–king ear.”Another woman is heard jawing at the antagonizer to “get your ass off the train,” advising her to use “Access-a-Ride” because that she “shouldn’t be on the train” if she just had surgery.As the two women traded vulgar barbs, Turner changed a broken guitar string and launched into “I Don’t Love You” by My Chemical Romance, a song he hoped would “piss [her] off and try to get [her] to leave,” for another train car as the A made the long express journey from Harlem to Midtown.Undettered, the woman sang along at full volume, drowning out the career performer as previously disengaged straphangers became visibly amused.“This woman has lungs that I couldn’t compete with without a microphone,” Turner said on his Instagram page.“This woman’s complaining about an ear surgery and she’s screaming at the top of her lungs.”The artist, who competed on Season 23 of “Idol” last year, said the only-in-New York encounter started when the woman tried to sing over him before commenting on a pin he was wearing that read “I’m autistic, awkwardness may occur.”“She sees the pin and goes ‘you’re applauding an autistic guy, he’s probab...