Glee Poll: Which Best-Selling Album Should Glee Tackle Next?

The students of Glee channeled Stevie Nicks, Lindsey Buckingham and the rest of Fleetwood Mac on the May 3 episode as they tackled songs from the group's iconic 1977 album Rumours. With sales of more 40 million in the U.S. alone, Rumours ranks as the tenth best-selling album of all time, which got us thinking about some of the other massively successful albums the New Directions group could break out. Should the kids take on tunes from Saturday Night Fever? Dip into Michael Jackson's Thriller again (beyond the title tune)? How about a little Backstreet Boys? Take a look at the following list, and tell us: Which of the best selling albums of all-time would you like Glee to dedicate an entire episode to? Vote below!