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.

'Sweet Caroline' After Neil Diamond's performance of "Sweet Caroline" at Fenway Park to honor the victims of the Boston bombing, sales of the song jumped nearly 600 percent. Diamond says he will donate all the royalties from the song to help the victims of the bombing and plans on writing a new song about the events.

Image credit: Michael Dwyer/AP Photo

New $100 The Federal Reserve announced today that a redesigned $100 bill will be introduced into circulation by October.

Image credit: Courtesy Federal Reserve