Sunny Hill will continue promoting "The Grasshopper Song" with a solid reinforcement!

The co-ed group has been showcasing strong performances with "The Grasshopper Song", and so fans were upset to learn that member�Jang Hyun would be withdrawing from the group to fulfil his mandatory military duties.

Many assumed that the group would continue with just the four ladies, but Sunny Hill's agency has assured that they've secured back-up in the form of A-list idols.

On January 27th, Sunny Hill's management (LOEN Entertainment)�announced, "Following the performance on "M! Countdown" where Monday Kiz' Han Byul filled Jang Hyun's space, Huh Kyung Hwan, MBLAQ's Thunder, and IU will be supporting Sunny Hill on KBS's "Music Bank", MBC's "Music Core", and SBS's "Inkigayo", respectively."

Considering how Sunny Hill will now be performing with a comedian, a male idol, and a female soloist, it's expected that the group will deliver three very different styles in their upcoming performances.

The members of Sunny Hill stated, "We were filled with disappointment after hearing that Jang Hyun would be leaving us to enlist in the military, but we feel strength in knowing that there are others who are happy to support us... We will work hard to show better performances and better attitudes."

Stay tuned for these exciting collaborations later on this week!