Jun Ji Hyun's return marked a change in class for the actress. She starred in SBS' "You Who Came from the Stars" and worked with Kim Soo Hyun, who is 7 years her junior. She played the part of top star Chung Song Ee, who was involved in a romance with 400-year-old alien Do Min Joon (played by Kim Soo Hyun). From its first episode, the show was very popular among female viewers. The show aired its final episode on the 27th, which recorded a whopping 28% viewership.

Jun Ji Hyun proved her worth not only through viewership ratings, but through sponsorships as well. Commercials during the drama's timeslot were mostly sold out. Not only that, Jun Ji Hyun changed into 15-16 different sponsored outfits per episode, which is twice the usual number for average miniseries female leads. Every article of clothing, shoe, bag, accessory, makeup, fragrance, and even sock Jun Ji Hyun wore exploded in sales after the episode aired.

She wore expensive luxury brands such as Hermes, Chanel, Gucci, Prada, and Christian Dior, as well as affordable luxury brands, each with a special look for Jun Ji Hyun.

Didier Dubot got its name out there thanks to what is now being called "Chun Song Ee's proposal ring". One Didier Dubot rep stated, "It's a new brand, and we've attained 250% of target sales. It's obvious that the 'Chun Song Ee effect' is huge."

Jun Ji Hyun's impact jumped beyond Korea and went overseas. In the drama, Jun Ji Hyun had a line where she said, "On a snowy day, chicken and beer is best." Thanks to that line, China now has a chicken/beer culture. Not only that, Jun Ji Hyun's other items are extremely popular in China, much like that of Korea.

Professionals agree that Jun Ji Hyun has a unique irreplaceable look that makes her stand out among Korean actresses. Image consultant Kang Jin Joo stated, "While most Korean actresses emphasize their femininity, Jun Ji Hyun showcases her healthy beauty, sexiness, and distinct personality. In recent years, she's become more luxurious and elegant with age."

Standing at 173 cm tall, Jun Ji Hyun is praised because 'no matter what she wears or which angle she's shot from, she's still beautiful.' That's also the reason why so many brand support her. In one of the episodes, Jun Ji Hyun wore Suecomma Bonnie shoes. One rep from the company stated, "Jun Ji Hyun has an image that many brands want to display, one of health and an elegant atmosphere."

Jun Ji Hyun's wave of popularity is also thanks in part to her acting transformation. After her role in My Sassy Girl, she played the innocent girl image. She was also swept up in controversies saying she's just a 'CF Star.' However, now people are acknowledging that things have changed. She took on more exciting roles in The Thieves and Berlin, and kept transforming as an actress. Then in "You Who Came from the Stars" Jun Ji Hyun took on the cute role of Chun Song Ee and successfully gave a carefree performance, which she was praised for. IHQ An Hyuk Mo, who's taught Jun Ji Hyun acting since before her debut until now, stated, "In the past she took on many roles that did not fit her, so she wasn't recognized as an actress. But in actuality Jun Ji Hyun is an actress that possesses the necessary emotions to play those roles. So far what she's shown is only 60% of her full capabilities."

It seems as if the Jun Ji Hyun syndrome will carry on for a while. Sometimes actresses get married and go through a cautionary phase in their careers, but for Jun Ji Hyun it's the opposite. After her wedding, she appeared in a greater number of advertisements, including those of refrigerators and household supplies. She even became an advertising model for kitchenware and household products. Advertising professionals support Jun Ji Hyun, because to women in their teens and 20s, Jun Ji Hyun is someone they want to emulate. For women in their 30s, Jun Ji Hyun has a nice balance between work and family. How far will her influence extend?