Saturday Night Fever

Madonna teased on what was soon becoming her surprise appearance on “Saturday Night Live” last night by posting this selfie on her Instagram:

“Saturday Night Fever!!”

Later on, she took out her phone right in the middle of The Barry Gibb Talk show segment and posted this image live on the social network:

“Oops Buttstagram! Staying Alive on SNL!”

Madonna also posed with New York City mayor Mike Bloomberg backstage at the show – and the moment was captured by ‏@EvErskine on Twitter:

You already know what happened next, if you’re following following @MadonnaTribe on Twitter.

Special thanks to Sam.