During the live broadcast of SBS' 'K-Pop Star' on March 18th, viewers were surprised to see the nation's little sister, IU, among the seated audience members.

As the top 8 contestants were putting on their performances, cameras captured the singer engrossed in Lee Michelle's spectacular performance of Beyonce's "If I Were a Boy". As soon as viewers caught a glimpse of the nation's little sister, the audience erupted in commotion and her appearance proved that stars are also showing interest in the audition program.

In addition to IU, miss A also made an appearance on the program, as seen in the clip below:



Meanwhile, the contestant eliminated this week was Baek Ji Woong who performed Kim Dong Ryul's "Etude of Memory".

Check out the performances below!

<Park Ji Min - In Dreams (by Lena Park)>


<Yoon Hyun Sang - So Nyeo Shi Dae - (by Girls Generation)>


<Lee Michelle - If I were a Boy (by Beyonce)>


<Lee Seung Hoon - - When I Can't Sing (SE7EN)>


<Park Jae Hyung - This Love (by Maroon5)>


<Lee Ha Yi -- Don't Stop The Music (by Rihanna)>


<Baek Ji Woong - Etude of Memory (by Kim Dong Ryul)>


<Baek Ah Yeon - Atlantis Princess (by BoA)>


Source & Image: Osen