Trending topics 10/5

Here are some of the most popular online searches for October 5, 2012.

Barbara Walters, Nicki Minaj & Mariah Carey

Barbara Walters is now in the middle of the fight between Nicki Minaj and Mariah Carey.

Walters said on "The View" that she called Carey before going on the air Thursday. She said Carey told her that Minaj threatened to shoot her at the end of their argument.

Walters says Carey is taking the threat seriously enough to hire extra security. Minaj responded on Twitter, saying that people believe she made the threat because she's a black rapper.

Minaj added no camera or microphone "picked up the gun comment."

Rosie O'Donnell Heart Attack

Rosie O'Donnell says her heart attack saved her life.

She recently told "People Magazine" that she comforted herself with burgers, cheesecake and candy when her now-wife Michelle Rounds, was having serious health problems.{}

She reached her highest weight ever and had the heart attack. That's when she decided to get rid of the junk food.

She's now lost 12 pounds.

Jay-Z YouTube Channel

Jay-Z is live-streaming the last of his eight concerts in New York City for the launch of his new YouTube channel. The first is tomorrow at 8:30pm. {}

His channel is called "Jay Z's Life and Times."

It's part of an "original programming" initiative by YouTube.

MLB Postseason

Baseball's post season has a new look.

Two, one game Wild Card playoffs are on the schedule Friday night. The Atlanta Braves take on the St. Louis Cardinals at Turner Field.

The winner will face the National League top seed Washington Nationals.

Later on Friday night, the Texas Rangers play the Baltimore Orioles for a shot at the American League playoffs.

The winner goes on to play the New York Yankees.