On February 11, vocal power group Big Mama appeared as guests on KBS2's 'Yoo Hee Yeol's Sketchbook'!

On this day, the ladies performed their comeback title track "Like Nothing Happened", delivering an explosive live stage as always. The group also sat down with MC Yoo Hee Yeol to talk about why the release of their 6th full album 'Born (本)' was delayed. 

Here, Yoo Hee Yeol stated, "Some of Big Mama's fans may have been thrown off. There were news reports last year saying that Big Mama's new album would be released in November, but the album release was delayed by several months." 

Lee Ji Young responded to this with, "It was really difficult to find songs that we loved. Our agency staff listened through about 70 songs. Of those, 30 were passed onto us to listen and choose from." Hearing this, Yoo Hee Yeol also commented, "You call that 'pitching'. In fact, the news that Big Mama would be making a comeback went around to all of the producers. The word gets around that they are looking for songs, and the producers all want to be on that album."

Next, Big Mama also treated viewers to a soothing a cappella medley of "Java Jive" and "Conga", astounding audiences with their perfect harmony. Catch clips from Big Mama's appearance on this week's 'Sketchbook', above and below!