Dreieck was an Austrian pop group formed in 2009, consisting of Melanie Hirner and Vanessa Derndorfer, who attended school together, and Jennifer Kandut, whom they met through Facebook. The trio gained the attention of Austrian producer Alexander Kahr, leading to a record deal with Universal Music Austria. Their debut single, "Gefährlich", was released in October 2009, reaching number 11 on the Austrian single charts. In spring 2010, they released their second single, "Wie es sein soll", and their self-titled debut album. Derndorfer left the band in 2011 to focus on her education. Their final album, Shake Your Hips, was released in August 2012. The group performed at various open-air events, including the Donauinselfest in 2010 and 2011. Internal differences led to their disbandment later that year.
