Crossover with the lambada

A Thane of Cawdor by day, Macbeth journeys at night to a Replica Bar at the bottom of the Old Lincoln School, where a group of witches gather to dance the lambada.

Using his dazzling dance moves to earn the witches' respect and acceptance, Macbeth then shows them how to make haggis in an informal backroom one-on-one. The witches' leader, Hecate, sees him in Cawdor. The next morning at Dunsinane while Macbeth is doing whatever the hell it is Thanes do, Hecate daydreams that Macbeth kills Duncan to become king, where he will then decree the lambada the official dance of Scotland.

But then Hecate thinks it will be even more fun to cause Macbeth's undoing, so she sets in motion events which lead to exposure of Macbeth's, his two worlds collide, MacDuff hangs him, there's a big ballroom dance to a Glenn Miller song, the Second Mrs. De Winter tells someone a story in a locked room, there's some business with Lady MacDuff and milk, etc.

The new king, Malcolm, bans the lambada from Scotland. This why the lambada is known as "The forbidden dance."