Girl group '4 minute' which made a recent comeback with the release of their new song "Crazy",
appeared on MBC Music 'Show Champion' on Feb. 11th, 2015.
The performance of HyunA got lots of attentions in Korean online communities.

Netizens who watched this performance showed their reactions like this,
"honestly,,it seemed like there is no other members on the stage.",
"her existence on stage is awesome !" "she seems like to be a crazy girl like her new song title on stage, awesome"