"Mistletoe" is a Christmas song by Canadian singer Justin Bieber. The song was written by Bieber and his producers, Nasri and Adam Messinger. The song was released on October 17, 2011, as the lead single from his second studio album and first Christmas album, Under the Mistletoe (2011). "Mistletoe" is a pop and R&B song, that has reggae influences. "Mistletoe" received generally positive reviews from most music critics. The song reached the top ten in Canada, Denmark and Norway, and slightly missed the top 10 in the US, peaking at 11, while also reaching the top forty in nine other countries. The song's accompanying music video was directed by Roman White. It features the singer singing on a snowy, lit-up street.
Bieber first premiered the song live on the My World Tour on October 6, 2011, at Olympic Stadium in Rio de Janeiro, Brazil. During the performance, Bieber confirmed that the song would be released on iTunes worldwide on October 17, 2011. In an interview with MTV News, Bieber said, "I'm really excited. [The song is] really catchy. I know all my fans are going to love it. It's something that I feel like they're going to be singing every Christmas.