After graduating, she worked as a backing vocalist for many pop singers before releasing her first EP Yeni Çıktı (2011) with the help of Erdem Kınay.

Following the release of "Yankı" and "Ben Bazen", her name continued to appear among the top three on the music charts, and her song "Öpücem" became a number-one hit in Turkey.

Since 2015 her songs have been among the most-streamed works on Turkey's radio and television programs, and in 2018 she became the second female artist with the most number of streams in the country.

[1] She studied Turkish classical music and got a chance to work with many musicians like Alaaddin Yavaşça and Sadahaddin İçli at college.

[6] Later, she worked as a backing vocalist on various albums, including Demet Akalın's Zirve (2010) and Gülşen's Ama Bir Farkla (2007).

[11][12] While working for Serdar Ortaç, Simge met Erdem Kınay who was quoted to have said that he would help her produce her own album.

[13] After working for a year with Erdem Kınay, Simge's first EP Yeni Çıktı was released in March 2011 by Kaya Müzik.

In order to promote her work, Simge made appearances on programs such as Beyaz Show, Disko Kralı and Hakan Bey.

[18] Yeni Çıktı did not bring the success that Simge had expected and later in her career she described that failure in a statement saying that it had failed due to "inconvenient publicity".

[24][25] For the song's music video, directed by Nihat Odabaşı, Simge spent a significant amount of money, leaving her with a ₺30,000 balance on her credit card, which she continued to pay back for a period of time.

In January 2016, she released her second single "Yankı", which reached up to number 2 on the official lists and was praised by critics.

[37] In May, she performed at Vodafone Arena during an event organized in honor of Beşiktaş's championship in the Süper Lig.

[38] Two months later she released "Kamera", a cover version of the Bollywood song "Badtameez Dil" from the movie Yeh Jawaani Hai Deewani (2013).

[44] A few months later, she talked about a person in her interview, mentioning her as "my girl", which resulted in a number of tabloids reporting on her hidden child.

[47] Upon Aydınlı's refusal to accept her offer, the case against him remained open and in August 2019 his imprisonment for up to 4.5 years was requested.

[52] During the preparation process of the album, which lasted over a period of four years, Simge worked with names like Alper Narman, Ersay Üner, Onurr, and Sezen Aksu.

[56][57] In 2019, Simge was among the artists who were featured on Ozan Doğulu's album 130 Bpm Kreşendo and performed the song "Ne Zamandır", written and composed by Ersay Üner.

The song, which was written by Onurr and composed by Onnur and Simge herself, was released together with a music video directed by Seçkin Süngüç.