It's the battle of the billionaires.

The campaigns of former New York Mayor Michael Bloomberg and President Donald Trump each plan to spend $10 million for advertisements during the telecast of next month's Super Bowl.

Bloomberg locked down a 60-second spot, The New York Times reported Tuesday. The Bloomberg campaign confirmed the ad buy, which will target Trump, to NBC News.

The Super Bowl, which is set for Feb. 2, will air on Fox and could be watched by more than 100 million people in the United States. It is some of the most expensive TV ad time of the year.