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."

A Capella Group Pulls Off Valentine's Day Surprise Vocal Point, Brigham Young University's a capella group, pulled off some epic Valentine's Day pranks this week. They snuck up on unsuspecting women and serenaded them with romantic tunes before handing them a single rose.

Skydiver's GoPro Falls Into Pigpen A GoPro camera fell off a skydiver's helmet last summer and landed in a pigpen. Mia Munselle found the camera facing toward the sky and it caught one of the pigs taking a sniff.