Child actor Anthon and best friend Thor formed the band Citybois in 2015 to compete in the eighth series of 'X Factor Denmark'. The band were placed fourth in the show, but did enough to be noticed by Sony Records, with whom they released their debut single 'Things We Do', which they had performed in the competition, in 2015. The single entered the Danish Singles Chart at number four, which was a higher position than 'Undiscovered', the single released by Emilie Esther, the winner of the show, which reached number ten. 'Things We Do' was certified Gold for sales.
Citybois released their second single 'Purple Light' in 2015. This reached number 23 in the Danish Singles Chart and was also certified Gold for sales. Their debut album 'What Bois About To' was also released in the same year and included the singles 'Things We Do' and 'Purple Light' and further single release 'Ridin'. The band released their next single 'Bedre End Rihanna' in 2016. This was their first single released in Danish. It reached number ten in the Danish Singles Charts and was certified Gold for sales. Following this, Citybois released all their subsequent singles in Danish.
The band were certified Gold with several of their other singles, including 'Under 18', 'Dum Song Mig' and 'Pool', which featured Topgunn. They had a further top ten hit in the Danish Singles Chart with 'Synger for Mig', which featured Skinz. In 2019 they released the singles 'Tig Mig' which reached number eleven in the Danish Singles Chart, and 'Finde Tilbage'.
