Manny Pacquiao couldn't be more loose heading into his Nov. 12 bout with Mexico's Juan Manuel Marquez.
Pacquiao joined Jimmy Kimmel on Jimmy Kimmel Live on Thursday night, where he spoke about his upcoming fight and the rumors of a possible fight with Floyd Mayweather Jr. However, the crowd really got its kicks when he busted out the microphone and sang a duet with the show's host.
To see PacMan sing "How Deep Is Your Love," watch below.
