Taylor Swift and Prince William Join Jon Bon Jovi for 'Livin' on a Prayer'

From the unconventional and awe-inspiring to the hilarious and heartwarming, here's a look at some of the most interesting photos, videos and stories that have our newsroom talking today. What's capturing your attention, filling your inbox and cluttering your Facebook/Twitter feed? Tweet us the stories you're talking about using #InstantIndex, or email us at ABC.WorldNews@abc.com, and they could appear on World News.

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Trio Brings Down the Palace Taylor Swift and Prince William joined Jon Bon Jovi to belt out his classic song "Livin' on a Prayer." It was a spur-of-the-moment sing-a-long for charity at Kensington Palace. William took the stage but insisted Taylor join him, giving the audience a rare treat. See for yourself here.

Thanksgiving Dinner Pounds The Thanksgiving feast - the rolls, gravy, pie and the fixings - are going to set you back about 4,500 calories Thursday. That's about the same as seven Big Macs from McDonald's or two medium pepperoni pizzas. While it may feel like you've packed on a dozen pounds by naptime that day, research finds the average American only gains about 1 pound during Thanksgiving.

Car in Wrong Place at Wrong Time A Range Rover was heading down a slick street in Harbin, China, a city known as "Ice City" when suddenly a massive sheet of ice slid from a nearby rooftop. The car was crushed but no one was seriously hurt.