In 2004, Lee participated in the singing talent show Malaysian Idol and was eliminated because she forgot her lyrics.

In 2008, she participated in the Astro Star Quest, and also won Top Three in the "Malaysian National Singing Competition".

She sang an adapted version of her famous song "Torture" at the Little Arena (Golden Melody Awards Ceremony) and became an instant hit.

In 2013, Li Jiawei went to China to participate in Hunan Television's The X Factor talent show, but it was reported that she withdrew from the competition for some reason.

On 17 March 2014, Jess Lee released her second solo album "Heaven/Cliff", and the first hit song "Cliff Like Heaven" sparked discussion.

In the "Suffocation Version" trailer released online on February 27 of the same year, the scene of Jess Leesinging while wearing a plastic bag made netizens think that the action was dangerous and might lead to inappropriate imitation.

The MV exceeded one million views on Youtube within one week, and Warner Music called Jess Lee the "Queen of Taboo Theme Songs".

In addition, "Cliffs Like Heaven" became the opening theme of the Korean dramas "The Master's Sun" and "The Perfect Nanny" aired in Taiwan.

[5] Starting from May of the same year, Jess Lee participated in AHTV's launch of the second season of the Chinese singer music battle reality show "Mad for Music" (我为歌狂); and the fifth wave of the hit song "Can't Help Missing" included in the Heaven/Cliff" album, It rarely became the opening or ending theme of Korean dramas "Empress Ki", "Good Doctor" and "The Hundred Years Bride" broadcast at the same time at 9 o'clock on three different TV stations in Taiwan.

Li sang four English songs and one of his own Chinese works "Like the Cliffs of Heaven" in half an hour, and finally scored 98 points.

[6] On 27 February 2015, Jess Lee participated in the third season of the Hunan Television's program I Am a Singer and became the last contestant in the ninth week.

Jess Lee has also escaped the fate of being "masked" in the title songs of the previous two albums, showing her "face" for the first time and serving as the heroine in the MV.

Emphasizing more on personal style; the second wave of hit songs "Chain Love" became the theme song of three dramas broadcast in Taiwan, including the Chinese TV series "The Legend of Miyue", the Korean dramas "She is Beautiful" and "My Daughter, Qin April".

On May 26 of the same year, Jess Lee participated in a corporate visit organized by POP Radio and went to the game company "Zhiguan Technology" to sing and promote the album.

On June 1, Jess Lee released the third wave of the MV for the title song "Nostalgia", and within one month of its release, the "Storm of Love" album has been sold on four major music channel channels at home and abroad: physical, digital, telecommunications, and radio.

On June 9, she held the "Jess Lee's Love Storm" new song concert at the New Taipei City Civic Plaza.

There are a total of 7 classic princess characters including Shakespeare, Belle in Beauty and the Beast, Pocahontas in Pocahontas and Snow White in Snow White; her high voice and singing skills have been praised by the outside world as "completely explosive" singer".

On 8 June 2018, Jess Lee released her solo fourth album "The Opposite of Yes",[10] featuring the official Chinese theme song "HEY BABY You're Mine", which she previously sang for the movie "Dear First Love", with the first wave of the hit song "The Opposite of Yes".