

"One Step Closer" is a ballad with dramatic melody arrangements and lyrics that include lines such as "Because I can hold you again" and "I want us to walk one step at a time, together". Her solos include "By Myself" for the SBS's drama Princess Ja Myung Go, "Because It's You" for the KBS2's Love Rain, and "One Step Closer" for the SBS's All About My Romance. A few of them are solos, while others are collaborations with fellow Girls' Generation members and other artists. Over the life of her career, Tiffany has released several songs for various television dramas and movies. For this release, Tiffany took an active role and served as the visual director to the overall album image and the concept of the title track's music video.The subgroup has a different musical direction and style concept from Girls' Generation, placing their focus on each member's vocal ability while the latter group emphasizes the songs and uniform group performances. In 2014, they released their second mini-album titled Holler.

Taeyeon, Tiffany and Seohyun formed a subgroup called TTS in 2012, releasing their first mini-album titled Twinkle during the same year.

During July of the same year, Taeyeon, Tiffany and Sunny attended Korea Day at the Dodgers Stadium in L.A., singing the national anthems of both Korea and US as well as pitching the first ball. In 2013, Taeyeon and Tiffany had a duet called "Lost In Love" on the group's fourth Korean album I Got a Boy. The group originally consisted of nine members: Taeyeon, Jessica, Sunny, Tiffany, Hyoyeon, Yuri, Sooyoung, Yoona and Seohyun. Girls' Generation is a South Korean girl group formed by S.M. Despite initial objections from her father, she packed up her former life and moved to South Korea after receiving permission to do so within three weeks of making the decision. She was invited to audition at the SM Entertainment Starlight Casting System, where she auditioned with Christina Aguilera's song "The Voice Within",and joined the company on October 2004 in Los Angeles, California at age 15. She grew up in Diamond Bar, California, attending South Pointe Middle School and Diamond Bar High School she graduated from Korea Kent Foreign School in Seoul. Tiffany was born in San Francisco, California.

She is a member of both the South Korean girl group, Girls' Generation and its subgroup, TTS. Stephanie Young Hwang (born August 1, 1989), better known by the stage name Tiffany or by her Korean name Hwang Mi-young, is an American singer and actress.
