Singer IU performed a sexy wave at "GO Show."

In SBS "GO Show" aired today, Brown Eyed Girls' Gain, IU, and miss A's Suzy came out as guests.

In the corner of showing off themselves, IU showed a peculiar talent of twisting her wrists.

IU said, "I'll also show a wave in celebration of turning 20" and danced to Brown Eyed Girls' 'Abracadabra'. All the MCs cheered her on, but IU herself fell on the floor and cracked up.

Photo Credit: SBS