KARA's maknae JiYoung apologised on twitter after making a mistake on Music Bank aired yesterday.

The girls performed their new hit song Jumping on the show,a little incident happened during the performance where maknae's JiYoung voice cracked during her part.

She expressed her apology on Twitter after the incident.However,many fans praised here for the cute mistake and asked her to train more at the same time,practice sure makes better,check out the performance of the girls on Music Bank here,congratz to the girls on winning Music Bank K Chart yesterday!

Check out the voice cracking part at 0.54.