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."

Butter Beats Margarine as America's Favorite It's official. Butter has won back American families. Butter consumption is now at a 40-year high while margarine is at a 70-year low.

FLOTUS Dunks on Miami Heat Players First lady Michelle Obama teamed up with basketball star Lebron James and the Miami Heat for a new ad to promote healthy eating as part of her "Let's Move" campaign. The ad, which premiered on "Good Morning America" today, featured Dwyane Wade and Ray Allen and head coach Erick Spoelstra discussing the importance of eating healthy. To see it, click LINK.

Renee Fleming to Sing Super Bowl National Anthem The Super Bowl has summoned the queen of the high C to sing the national anthem during the big game. Opera powerhouse Renee Fleming is expected to step up to the mic, becoming the first opera star to do the honors.

(Photo Credit: Alex Wong/Getty Images)