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In the world of rock music, few sibling partnerships have shined as brightly as that of Ann and Nancy Wilson of Heart. Known for their powerful harmonies and emotive songwriting, the sisters found their relationship tested during a 2016 night at the White River Amphitheater in Washington. What was meant to be a homecoming show turned sour when Nancy’s twin sons were involved in a violent incident with Ann's husband, Dean. Dean's aggressive behavior led to his arrest and deeply strained the sisters' once-close bond.