What 2 coaches on The Voice first appeared in season 4 and returned for season 6?

More Questions:

What is Lambeau Field's nickname?

London's Old Bailey is a what?

What is Dorothy's last name in "The Wonderful Wizard of Oz"?

What does the acronym BPRD stand for?

What is the capital of the Canadian province Nova Scotia?

What country borders Guatemala to the west?

In what state was the transcontinental railroad completed in 1869, with the hammering of the Golden Spike?

What country borders Egypt to the south?

What’s the largest country entirely within the southern hemisphere?

Who finds E.T.?

Who won an Oscar for her performance in "Mary Poppins"?

What military legend was nicknamed "Stormin" Norman"?

What year did "Petra" become a UNESCO World Heritage Site?

What country once technically fought a war against a species of bird?

Which album won the 2016 Grammy Award for "Album of the Year"?