On the biggest racing day of the year in the United States, the country's two most prominent racing series staged several tributes for Kyle Busch, the two-time ​NASCAR champion who died unexpectedly Thursday.

NASCAR CEO Steve O’Donnell honored Kyle Busch’s widow, Samantha, and the couple’s children, Brexton and Lennix, before the start of the Coca-Cola 600 on Sunday in an emotional speech. Standing on the frontstretch at Charlotte Motor Speedway,

Richard Childress Racing announced Austin Hill will replace Kyle Busch in the Coca-Cola 600 in Charlotte, NC. Kyle Busch passed away suddenly this week at the age of 41.

NASCAR community comes together at Charlotte Motor Speedway before the Coca-Cola 600 to honor the life and legacy of legendary driver Kyle Busch.

It’s a solemn day as tens of thousands of NASCAR fans are trekking to Charlotte Motor Speedway to remember Kyle Busch at the first race after since his sudden death.

NASCAR Chief Executive Officer Steve O’Donnell embraces Kyle Busch's mother, Gaye Busch during the remembrance ceremony for Kyle Busch, who passed away suddenly at the age of 41

Driver Romain Grosjean will compete with his car bearing the number 18, the same number Busch used from 2008 through the 2022 NASCAR Cup season.

Fox News correspondent Madison Scarpino reports from the Indy 500 where fans are honoring the life of NASCAR legend Kyle Busch on 'Fox News Live.'