She started her music career by studying piano at “Pera Fine Arts Academy”. She was then selected to “Atatürk Cultural CentreState Opera and Children's Ballet Ensemble” as well as the Children's Choir. She began to pick up roles and perform as a child actress in theatre. She played in “Bird Man and the Prince”, “Cinderella”, “Sleeping Beauty” and “The King and I”. She completed her high school education at “Mimar Sinan Fine Arts University State Conservatory Ballet Department”. She graduated with an undergraduate degree from MSGSU State Conservatory Modern Dance Education. She then continued to work on different dance routines with important choreographers from all over the world. Gülçin then started taking private singing lessons during her high school years and still continues to do so. In 2005 Gülçin established an iconic girl-band by the name of “HEPSİ” with three of her friends Cemre Kemer, Yasemin Yürük, Eren Bakıcı which Gülçin Ergül was the lead-singer. They released three albums and two singles; “Hepsi 1”, “Hepsi 2”, “Hepsi Pepsi Single”, “Winx Club Soundtrack”, “Hepsi Şaka ” In 2006 together with the group, she became the face of commercial brands “Pepsi” and “Penti”. The group toured Turkey and abroad with the legendary Turkish singer “Sezen Aksu” and “Kenan Doğulu”. She guest starred with Hepsi in different TV series. Gülçin also starred in the movie “Kısık Ateşte 15 Dakika”. Hepsi then had a TV show in 2007 called "Hepsi 1" which was aired by Turkish TV Channels Show TV and ATV. She played the character “Gülçin Ergül" for two seasons. Gülçin then left the group in 2009. Two years later in 2011, Gülçin released her first solo album titled "Bravo!". She recorded her first music video for the song "Ara Ara" which was number one in “Turkish Billboards Music”. She then worked with the world-famous dancer and choreographer “David Hernandez” for "Ara Ara", who also has worked with world stars “Kylie Minogue” and “Mariah Carey”. She then started to perform jingles for Star TV, Medipol University, ShowTV, Tamek, Radio Fenomen and Radio Bilyoner. In 2013, she featured in the covers of magazines “Trendy”, “Dream You” and “WoMen”. In 2015, she released her second solo album titled "Bir Tanecik Aşkım”. The music video for “Bir Tanecik Aşkım” reached “40 million” views on Youtube. She recorded an English version of the song called “My One and Only Love” which was highly praised. In 2016, she released another single called “Harabeyim”, which the lyrics and music belong to her. In the music video her dances caught the attention of many viewers. The same year Gülçin also featured in a duet called "Ağlat Beni" with the legendary Turkish singer “Harun Kolçak”. The song quickly became a hit in Turkey where the audio video reached “48 million” views and the video clip reached “34 million” views on YouTube. Gülçin became the face of the “AVON" in 2018 and released a song for the brand. Also the same year Gülçin received her teaching certificate to be a qualified “Yin Yoga Teacher” as she has had a love for yoga since 2005. In August 2018, she then released her conceptual project album, “Arabesk”. In the album, she reinterpreted old Turkish songs using soulful modern vocals. She has filmed music videos for the songs "İtirazım Var” and "İkimize Birden” which were featured in the album. In the music video of İkimize Birden, the story of the couple who could not be together despite loving each other was told with modern dance. In 2019, she made a soundtrack for the movie ‘’Kim Daha Mutlu’’ which also has the same name. The same year she released another single called “Hoş Geldin” which was also featured in the movie. Gülçin has the chance to be the one of the main judges for the Turkish version of ‘’All Together Now the UK’’ called ‘’Benimle Söyle’’ for two seasons and her live Grease performance at the season finale was highly admired. In 2020, she created a soul-trap single called "Ferman", whose lyrics and music belong to her. In order to raise awareness against the “COVID-19” pandemic, the production process was completed indoors, in her own home. She also filmed the video clip for the song at home.
