The game is set for February 7 at Raymond James Stadium in Tampa, Florida, meaning the Buccaneers will be the first team to play in a Super Bowl in their home stadium.
The Chiefs defeated the Buffalo Bills 38-24 in the AFC championship Sunday. It'll be the Chiefs' fourth trip to the Super Bowl in franchise history.
"The best thing about this team is we believe in each other," Chiefs quarterback Patrick Mahomes said. "I trust my guys over anybody and we're going to go out there and be who we are."
Earlier Sunday, the Bucs beat the Green Bay Packers 31-26 in the NFC championship, earning them their second trip to the Super Bowl in franchise history. The first was in 2003 against the Oakland Raiders.
Brady also made history Sunday. At 43 years old, he will be the oldest player to play in the Super Bowl.
This will be Brady's 10th trip to the big game. With the Patriots -- where Brady played for 20 years before signing with the Bucs last March -- Brady went to the Super Bowl nine times, leading the team to six wins, the most for any player in NFL history.