SISTAR member Hyorin revealed her quickly changing smiles.

SISTAR Hyorin gained attention recently for her leg splits in her most recent commercial.

Today, her agency released pictures of Hyorin's soju commercial making pictures.

In the picture, she quickly changes from a sexy look to a cute smile, showing her professionalism.

Internet users commented, "She is sexy and cute" and "I keep on watching her commercial."