Two astronomers go on a media tour to warn humankind of a planet-killing comet hurtling toward Earth. The response from a distracted world: Meh.

Ariana Grande takes the stage in London for her Sweetener World Tour and shares a behind-the-scenes look at her life in rehearsal and on the road.

Faced with a holiday cheer crisis, the North Pole knows there’s only one person who can save the day: Santa’s great friend, Mariah Carey. Combining musical performances, dynamic dancing and…