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? Comment below with the stories you're talking about or tweet them to us using #InstantIndex and they could appear on World News.

BRACKETS BUSTED BY BIG UPSETS

We're in the midst of March Madness. Eight million people, including President Obama, entered ESPN's tournament challenge. Thanks to Harvard's 68-62 upset of West region No. 3 seed New Mexico on Thursday, only about 1,200 perfect brackets remain. The 14th-seeded Crimson recorded its first NCAA tournament win in the program's 113 year history. Only 5 percent of the 8 million entries picked Harvard to beat the Lobos. The president was not one of them. Now many are watching to see if Harvard can pull off another upset as the team faces No. 6 seed Arizona.

DON'T MESS WITH BILL COSBY'S SWEATERS

(Steve Jennings/WireImage/Getty Images)

Remember Cliff Huxtable's sweaters that got brighter and bolder as "The Cosby Show" went on? CosbySweaters.com was titled as such to honor the childhood idol of the website's owner, Kiley Kmiec. However, Bill Cosby was not very appreciative of the gesture. Cosby issued a cease-and-desist letter to Kmiec, forcing him to change the website's name. It is now called NextImpulseSports.com.

LENO'S JOKE: "NBC SENDING ME ON A CARNIVAL CRUISE"

(Kevin Winter/Tonight Show/Getty Images)

Jay Leno is taking aim at those NBC rumors that he is about to be replaced by Jimmy Fallon. He told his audience NBC executives would be sending him and his wife on an all expenses paid Carnival cruise. The network is building a big new studio for Fallon in New York, but so far it has had no comment on the rumors that Leno is on the outs.