Andrea Bocelli shares voice update after last-minute Boston, Philadelphia cancellations: "It rarely happens"

BOSTON - One night after Andrea Bocelli canceled his Boston concert at the TD Garden with fans already in their seats, a similar situation played out in Philadelphia on Thursday. And now the Italian singer has put out a statement on the "health challenges" affecting his world-famous voice.

Just as he did in Boston, Bocelli came out on stage in Philly to tell ticket holders that he was unable to sing. He did play keyboard to accompany a performance by his 11-year-old daughter, according to posts from attendees on social media. 

While many fans wished him well, others said they were frustrated by the last-minute nature of the cancellations, which organizers say will be made up at a later date.