Adele Has the Perfect Reaction to Accidentally Kissing a Fan on the Lips

Adele's headline-making tour rolls on -- and is as entertaining as ever!

The singer unwittingly delivered yet another hilariously adorable on-stage moment in Vancouver, when an excited fan stole a kiss right on the lips.

"Oh, my God! I haven't been kissed by another man in, like, six years," Adele declared. "He just snogged me!"

WATCH: Adele Burps in a Fan's Face, Restarts a Song During Epic Glastonbury Festival Performance 

It all went down after Adele called the 21-year-old man up on to the stage with her. After learning that he'd traveled all the way from Nigeria to see her show, she leaned in for a hug and a sweet peck on the cheek. What she got, however, was a full-on smooch when the fan turned his head at exactly the right time.

Oops!

Whether it was intentional or accidental, the "Hello" singer didn't seem too bothered by the mishap. She happily posed for a selfie, which was later posted on Instagram.

"@Adele thank you for such an amazing night. Your voice is as beautiful as your personality," the fan wrote. "I was trying so hard to keep my cool, for everyone whose seen the video I was sweating hyperventilating and I just couldn't believe that out of over 20000 people I was the one you noticed and called up on stage with youuuu! Who gon check me boo?!"

WATCH: Adele Looks Stunning in New Makeup-Free Pics