Huh Gayun of 4Minute appeared as a guest on Mario's stage at "Inki gayo" for his song "Text Message."

Mario in his black suit and Huh Gayun sporting a red dress, the stage emanated a rather sophisticated ambiance especially due to the orchestra in the back.

But Huh Gayun suddenly went off-tune during the latter half of the song. The conspicuous mistake seemed to have shocked the singer herself as she was unable to continue singing for some time.

"Text Message" by Mario, originally featuring Baek Ji Young, is a deep ballad which goes well with Mario's smooth and natural rap.

This week's Inki gayo featured MBLAQ, T-ara, Se7en, FT Island, J-Cera, Rainbow Pixie, Sunny Hill, Teen Top, CHAOS and many others in addition to Mario.