Barry Gibb and Robin Gibb

Jimmy Fallon is going to have some hilarious explaining to do.

Barry and Robin Gibb of the Bee Gees — who Fallon and Justin Timberlake notoriously impersonated on Saturday Night Live — will guest on Fallon's Late Night on Tuesday, March 16. This will be their first appearance on the show.

Betty White hosting Saturday Night Live on May 8

The Bee Gees are one of the most successful bands in pop history. They've won seven Grammys, several Lifetime Achievement awards and were inducted into the Rock and Roll Hall of Fame in 1997.