It was recently revealed that Mnet's 'Unpretty Rapstar' would feature unexpected collaboration performances by Kisum, AOA's Jimin, and Yook Ji Dam! 

Accomplished artists such as rapper Iron, 15&'s Baek Ye Rin, vocalist Insooni, as well as producers such as The Quiett, Gray, and Rhymer will pair off with a contestant for the semi-final stages. 

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On this day, Jimin received help from rookie rapper Iron, former contestant of 'Show Me The Money,' adding even more groove to her performance. Kisum also decided to go for a collaboration with veteran singer Insooni to boost up the quality of her performance.

Jessi also won this episode by scoring 154 points. The other results from this week's competition as well as the performances by Yook Ji Dam and Kisum will air next week.

Check out the studio version of this week's performances below! Which was your favorite?

Tip: Anne