Poor ticket sales have forced the cancellation of boxer Manny Pacquiao's concert Sunday at the Waikiki Shell.

Only 603 tickets had been sold for the “;Manny Pacquiao Live In Hawaii Concert Celebration”; just days after more than 45,000 people — the largest crowd to see a fight in the U.S. in 17 years — watched Pacquiao retain his welterweight title against Joshua Clottey in Texas.