VIDEO : Critics Slam Nelly Furtado's Performance at the NBA All-Star Game

(CNN)Perhaps the biggest foul of the record-breaking NBA All-Star Game came before tipoff. At least that's what critics are saying about singer Nelly Furtado's performance of her national anthem at the game in Toronto on Sunday night. Seconds after American R&B singer Ne-Yo performed a soulful, well-received rendition of "The Star-Spangled Banner," Canadian Furtado stepped onto center court to sing "O Canada." At times, Furtado seemed to be out of sync with Native American flute player Tony Duncan, who accompanied her center court.