The singer performed at the Summerburst Festival in Stockholm, Sweden, over the weekend, where one fan in the audience yelled for Bieber to sing the Spanish-language track.
"I can't do 'Despacito,'" Bieber yelled back from the stage, as seen in a Youtube video posted by Anonymous Belieber. "I don't even know it. I can't do the song."
Moments later, someone in the crowd hurled a water bottle at him, which he deftly dodged. The notoriously temperamental performer took the attempted pelting in stride, however, simply responding, "Woah, don't throw things at me, please."
However, Bieber's refusal to sing "Despacito" is likely a better decision for the star than when he chose to attempt the song during a special appearance at 1 Oak in New York City last month, and ended up ad-libbing random lyrics in place of the Spanish words he was supposed to be singing.
"I don't know the words, so I say, 'Poquito.' I don't know the words, so I say, 'Dorito.' I don't know the words, so I say, 'Poquito,'" Bieber is heard sing-talking in a fan video posted to Instagram. The singer than just made a string of random noises until he returned to the verses he was familiar with.