Earlier this month, Jimmy Kimmel sung his own rendition of Manny Pacquiao’s planned walkout song “Lalaban Ako Para Sa Filipino” (or “I Will Fight for the Philippines”) for Pacquiao’s fight with Floyd Mayweather.

So, when Manny Pacquiao appeared as a guest on Kimmel’s show on Wednesday night, it made sense for the two of them to sing Pacquiao’s number together. Granted, Kimmel essentially only knew the opening verse but I’m sure that he can learn the rest of it by the time that Pacquiao takes on Mayweather on May 2nd.