Britain's best (and worst) variety acts compete to win a spot at the Royal Variety Show.

Winners, finalists, fan favorites and viral sensations from previous seasons of America's Got Talent and Got Talent franchises around the world take the stage once again, but this time to compete for the ultimate All-Star title.

Winners, finalists, fan favorites and viral sensations from previous seasons of America's Got Talent and Got Talent franchises around the world take the stage once again, but this time to compete for the ultimate All-Star title.

Britain's best (and worst) variety acts compete to win a spot at the Royal Variety Show.