It was Pacquiao who personally chose Sanchez to sing the two national anthems.
The invitation came out only last Tuesday when Pacquiao tweeted Sanchez if she can do the honor of “singing the national anthems before our fight?”
Sanchez later replied: “Yes! I’m honored!”
The two are set to team up in a fund-raiser for Yolanda victims after the bout.
Watch the video here: