I always say, one is truly a great singer if one does musicals. There's nothing like sitting in a theatre hearing someone belt out some serious vocals to a song while acting and attempting to entertain an audience. In my eyes, musical theatre is where it's at and if a K-pop idol can score one and perform in it with great reviews, they are a superstar in my eyes. Let's take a look at K-pop idols who have conquered musicals.

I always knew Jessica had some pipes, but when I heard the news that she would star as Elle Woods in the Broadway musical of "Legally Blonde" I was stunned. Could Jessica do Elle Woods justice? Could her ice queen demeanor transform into a ditzy yet intelligent and funny blonde? The answer was yes! Jessica showed the world that she could do a musical and she did that musical well and all was right in the world.

Fly to the Sky's Brian Joo decided to take on musicals a few years back and has found much success over the years. One of the biggest highlights of his career was when he co-starred in the US produced Broadway musical, "Loving the Silent Tears" where he performed in front of top notch stars and producers to raise money for various charities. The singer also had a part in the famous musical, "Rent" in Korea. Watch here:

The talented Junsu of JYJ and Beast's Hyunseung both took part in the musical "Mozart!" where both artists did a fantastic job in portraying the character of Mozart.

2AM's Changmin took on his first musical, "La Cage Aux Foiles" where he played the role of Jean-Michel. I would have loved to see this in person!

B1A4's Sandeul made his musical debut with "Brothers Were Brave" where he played the role of Joo Bong alongside Cho Kang Hyun, Kim Jae Bum, and Kim Do Hyun.

So much talent in K-pop! I love it! Have you seen any of these shows starring your favorite idol in the flesh?