On February 20, 2015, Mayweather announced that the fight was official and had finally been signed to take place on May 2, 2015.
Mayweather and Pacquiao will face off at the MGM Grand in Las Vegas.
The fight is expected to shatter Pay-per-view (PPV) buy records and gross millions of dollars with the ticket prices ranging from $3,500 to $250,000 and the PPV is expected to cost US$89.95 for SD and US$99.95 for HD.
Boxing experts say this match could be the richest fight in boxing history and could generate $300 million.
Find out more about Mayweather and Pacquiao's 'fight of the century' in the gallery below.