More than 18 million American Idol voters didn't keep Leah LaBelle hanging on very long. The 17-year-old tone-deaf Seattle native became the first Top 12 finalist to get the hook on last night's show. Speaking of Idol, Tuesday's performance edition — which featured LaBelle's horrendous cover of "You Keep Me Hanging On" — attracted a staggering 26.7 million viewers, giving Fox its biggest Tuesday ever.