"Achterbahn" (German for "Rollercoaster") is a song by German singer Helene Fischer. It was released in 2017 as part of her self-titled album, Helene Fischer. The song is a pop song with elements of Schlager music, characteristic of Fischer's style.
"Achterbahn" describes the emotional ups and downs of a romantic relationship, comparing it to the thrilling and sometimes unpredictable experience of riding a rollercoaster. The lyrics explore themes of excitement, fear, and the rollercoaster-like nature of love, where one moment everything is high and exhilarating, and the next it's a steep and potentially frightening drop.
The song was commercially successful in German-speaking countries, reaching high positions on the charts. It is also frequently performed live during Fischer's concerts and tours. It is considered one of her signature songs.