Which two sisters are the only ones to win the ACM’s Top Female Vocalist award?

More Questions:

Which one of tennis" Grand Slam tournaments is held in January?

In ice hockey, how many players for each team are allowed on the ice at the same time?

Often worn by young girls, "Mary Janes" are what type of fashion item?

Ash Wednesday marks the first day of what?

What song contains the line "I feel stupid and contagious"?

In the beer world, what does the abbreviation IBU stand for?

According to Exodus, what is the tenth plague of Egypt?

In terms of area, how much bigger is Queensland than the UK?

What river divides the city of Budapest into the "districts" of Buda and Pest?

How many stars does Aries consist of?

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

What is James Dean's middle name?

What TV show had the tagline: Most gripping sitcom since 1380?

"From a Distance" was a hit in the early 1990s for which singer?

What's the principal river of Ireland?