Justin Bieber on ‘Saturday Night Live’: See the Best Fan Reactions

Justin Bieber fans are going wild over the singer's Feb. 8 appearance on Saturday Night Live.

Beliebers worldwide celebrated on social media following the 25-year-old pop star's performances of "Yummy," the first single off his forthcoming album, Changes, and his brand new single "Intentions," featuring Quavo.

Bieber appeared as SNL's musical guest alongside first-time host RuPaul. This was the "Yummy" singer's first time back to Studio 8H since 2013 when he appeared as both host and musical guest.

Beliebers couldn't seem to get enough of the singer's most recent SNL appearance, posting dozens of photos, memes and videos on social media. Some fans hilariously commented on Bieber's new mustache, while others were simply thrilled to see him back on stage performing new music.

See some of the best social media reactions to Bieber on SNL below.