Following the competition, the record company gave all seven contestants an audition. Jen was the eventual winner of the contest. She caught the judges' attention in the first round by performing Coco Lee's "Before I Fall in Love" and entered the final round with "The Closest Stranger". She also sang "Reflection" by Christina Aguilera. Due to her nervousness during the final round, Jen was called out twice, and when she was announced the winner, she was doubtful because there were other contestants who had not been called out. However, all three future members of S.H.E were signed together under HIM International Music.
The name Selina was chosen by her company after taking a personality test; which represents "gentleness". The name initially had two possible spellings: Selina and Selena. Jen eventually chose "Selina" simply because she would be able to dot the i.
Solo career
On December 16, 2011, Jen released her debut solo EP, Dream a New Dream (重作一個夢), which was produced during her rehabilitation following a severe burn accident while filming in mainland China. The lead single, "Everyone Who Loves Me" (愛我的每個人), was composed by JJ Lin with lyrics by Daryl Yao, was first premiered on the official HIM International Music website on October 29. The song "Dream" (夢) was composed by Jay Chou with lyrics written by Jen, through which she chronicled the pain, struggle, hope, and gratitude she experienced over more than 400 days of rehabilitation. This marked their reunion as collaborators following their 2008 work, "It's Quiet" (安靜了). Additionally, television host Kevin Tsai contributed the lyrics to the title track, "Dream a New Dream" (重作一個夢).
On January 19, 2015, Jen released her first solo album 3.1415. On February 15, 2015, she held her first solo concert as an individual in Taipei.
Since 2018, Jen has experienced persistent vocal issues that have yet to be fully resolved. Although an examination by an otolaryngologist confirmed that there were no structural abnormalities in her vocal cords, and she subsequently sought both professional vocal training and psychological counseling, the underlying cause of the condition remains unidentified; she has suggested that the issue may involve a shift in her vocal resonance and voice placement. Jen has stated that singing has become a source of psychological pressure, leading her to indefinitely postpone plans for her second solo album and all singing-related engagements. She intends to prioritize her career as a television host while awaiting a full recovery of her vocal health.
On December 6, 2019, Jen released a cover of the viral TikTok song "Heart Like Still Water" (Chinese: 心如止水). This release marked her return to singing following the vocal struggles she faced in 2018, and served as her first musical work since the establishment of her own studio, The Beauty of Ren Limited (任真美好). The release garnered significant attention from fans. Her manager clarified that there were no underlying issues with Jen's vocal cords, attributing her previous inability to sing to psychological pressure. The manager reassured fans and noted that the singing style of this new single differs from her signature warm and sweet vocal style. A series of short comedic promotional videos was subsequently released from December 9 to 11.
On October 11, 2020, Jen released her new single, "All year round" (Chinese: 四季), marking her first musical release in 11 months. Announcing that she had overcome her inner fears and emerged from a slump caused by vocal loss, she stepped behind the scenes for the first time to take part in the song's production.
As of January 2021, Jen ventured into the F&B industry with packed porridge as her first line of products. Her company is known as "Ren Sing Eat Shot" (任性eat下). She occasionally shares Vlogs of her food and hiking experiences on her YouTube channel.
On December 17, 2021, Jen released her personal digital EP, My Own Beauty. The EP features three tracks: "My Own Beauty" (往美的路我要自己作主), "Joyful Loneliness" (居里夫人), and " We Are All the Same" (你我他). Jen contributed to the songwriting and composition for two of the tracks.
On 1 April 2022, Jen's first horror movie, The Funeral (頭七) was released where she plays the role of a mother. This marks her first appearance in a film nearly twelve years after her accident.
On April 29, 2022, Jen released her second solo studio album My Own Beauty. It was her first physical album released under her own independent studio, The Beauty of Ren Limited. The album contains a total of eight tracks, including two instrumental versions. One of the songs, "In The Dark" (黑夜中相擁), serves as the theme song for the film The Funeral (頭七). The physical release is available in two editions: a standard edition and a limited edition featuring a gold-foiled serial number (0001–1031). The limited edition, strictly capped at 1,031 copies, was made available for pre-order on April 8 and sold out within two hours.
