Justin Bieber says that he doesn?t know the lyrics of his latest hit, ?Despacito.? The entire song is sung in Spanish, and it is currently number one on the top Billboard Hot 100 list. During a concert at the recent Summerburst Festival, Beiber?s fans asked him to sing the song. He admitted to the crow, ?I can?t do ?Despacito. I don?t even know it.? Fans got angry and threw a bottle at Bieber. Bieber than pleaded with the fans, ?Don?t throw things at me please.?