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.

Coldplay Performs Secret Concert in English Pub Coldplay snuck into a tiny pub in the English countryside for a secret concert. The office party was thrown by the pub's owner who also happens to be a record executive. Lead singer Chris Martin even got behind the bar and poured some pints for the 100 lucky fans.

Mistletoe Drone Brings Holiday Cheer to San Francisco A California artist wants to help Americans re-imagine drones, not as something scary, but as something fun and human. He's bringing holiday cheer to San Francisco with a drone loaded with mistletoe that hovers over unsuspecting couples.

Brad Pitt, Keith Richards Celebrate Milestone Birthdays Today is a milestone birthday for two familiar faces. It's hard to believe, but Brad Pitt turned 50 today. He's even gracing the cover of AARP Magazine. Rolling Stones guitarist Keith Richards turned 70 today.

(Getty Images)