She rose to prominence with her hit studio album Sweet Dream in 2002, and starred in well-received television series Successful Story of a Bright Girl (2002), My Love Patzzi (2002), Wedding (2005), My Bratty Princess (2005), You Are My Destiny (2014), Confession Couple (2017), The Last Empress (2018–2019), VIP (2019), and Sell Your Haunted House (2021).

After starring in the popular sitcom New Nonstop, she became more well-known and released the other tracks in the album such as her pop ballad style song, Confession and the April Story, ranked at the top in various music charts.

The song Sweet Dream became immensely popular and reached number 1 in Korean music charts, instantly making Jang a household name.

[8] In December 2003, Jang released her third album, aptly titled 3rd Story, which included top tracks I am a Woman Too and Is That True?.

She followed it up with her fourth album titled My Story released in December 2004, consisting of hit songs such as I Love School and Winter Diary.

Her first Chinese album was a huge success, making her the first foreign artist in China with over 1 million copies sold.

[16] In 2012, four years after releasing Dream of Asia, Jang returned to the Korean music scene with the digital single I Only Think of You.

[18] On May 20, 2018, Jang Na-Ra performed Sweet Dream, I am a Woman Too, April Story on Sugar Man season 2, which was the highest audience rating among all terrestrial and non-terrestrial programs broadcast at the same time.

[20] In 2002, Jang landed her first leading role in a drama in SBS's romantic comedy Successful Story of a Bright Girl.

[27] Wedding, which established Jang as an actress, and she received viewer acclaim for her portrayal of a woman's growth and identity in marriage.

[30] She made several other drama series in China which includes Good Morning Shanghai in 2007, Iron Masked Singer in 2010, and Unruly Qiao in 2011.

[31][32] In 2009, she returned to the big screen with Sky and Ocean, playing a gifted violinist with the mental age of a 6-year-old, diagnosed with Savant syndrome.

[40] The following year, she filmed her first Chinese movie, Flying With You, starring opposite Taiwanese singer and actor Jimmy Lin.

[44] In December 2012, Jang reunited with her Baby Faced Beauty co-star Choi Daniel for KBS's teen drama School 2013.

In July 2014, Jang played the lead role in You Are My Destiny, the Korean adaptation of the 2008 Taiwanese hit drama Fated to Love You.

[48] This TV series reunited her with Jang Hyuk 12 years after both starred in the highly rated drama Successful Story of a Bright Girl.

[66] In 2024, Jang won the Grand Prize (Daesang) at the 2024 SBS Drama Awards for her role in Good Partner as Cha Eun-kyung.

After the concert on stage, a Chinese charity organization appointed Jang as a goodwill ambassador, making her the first foreigner to receive such an honor.

[71] In the aftermath of the 2008 Sichuan earthquake, Jang donated 150,000 dollars to a charity organization in China and 8 billion won of clothing for the victims.

[75] In 2017, it was revealed that Jang had secretly donated more than 13 billion won, or close to 12 million US dollars, since her debut in 2001 to various charities, disaster reliefs, and academic organizations.

She renewed this commitment as she was chosen as one of the honorary public relations ambassadors for the 2017 South Korean presidential election.

[84][85] This is due to her rising number of product endorsements ranging from telecommunications (KTF),[86] automobile (Kia Spectra),[87] fashion (SMART uniform),[88] fast food (Popeyes),[89] to alcoholic beverages (잎새주).

[90] In March 2020, it was revealed that Jang had signed an exclusive model contract with air purifier brand Clair back in December 2019.

[91][92] Jang signed a contract with Korean cosmetic brand CharmZone as an official model, as revealed in April 2020.

She disclosed in an interview on Healing Camp, Aren't You Happy that she suffered from gastric ulcers, irritable bowel syndrome, panic disorder, bulimia, and acrophobia due to intense stress and pressure as a celebrity.

Her father, Ju Ho-seong (real name Jang Yeon-gyo [ko]), is a theater actor, producer, and director.

[111] Confession) # 눈물에 얼굴을 묻는다 (Burying My Face In TearsYun) # Make it Right # 물고기자리 (PiscesApril Story) # 눈물에 얼굴을 묻는다 (Burying My Face In TearsString version) # Gloomy Sunday # Blue # 약속 (PromisePerhaps Love) # 혼자서도 잘해요 (I Can Do It Well By MyselfA Mere Child) # Ending # I'll Be There For You # 뙈지아가 (Pig BabyA Forget-Me-Not) # 사막한가운데서 (In The Middle of the DesertCan You Accept Me Again?)

Shin Hye-sung) # 사랑하기 좋은 날 (Good Day to LoveWinter diary) # 나 (ICalling out love) # 마음을 잃다 (Losing one's mindFingernails) # 가면무도회 (A Masqueradefeat.