In 2007, the album Taktik took Bengü's career into another level. The likes of Serdar Ortaç, Adnan Fırat, Kutsi, Alper Narman, and Fettah Can worked on it. Bengü also included the song "Yolcu", which she had written and composed herself, in the album. The first music video form the album was "Korkma Kalbim", written by Serdar Ortaç and composed by Suat Aydoğan. It eventually became a massive hit inside Turkey. With its success, the song received a digital certification from Mü-Yap. With 136,430 downloads, it became 2007's 13th most downloaded song. The second song that was turned into a music video was "Unut Beni", written by Adnan Fırat. It also achieved great success. The song "Ağla Kalbim", which was featured beforehand as a demo on Hande Yener's album, met special interest from the fans and was used on the soundtrack of the popular series Doktorlar. Despite lacking a music video, it has become one of the classic works of Turkish popular music. Taktik sold 100,000 copies and became one of the best-selling albums of the year.