Petersen was born in Tórshavn, Faroe Islands in 1997.[1] He started playing the piano aged six, but his focus moved towards gymnastics as a teenager. His musical interest returned a few years later after performing in a school production, and he began taking singing lessons.[5]
Petersen lives in London. As of February2023,[update] he was temporarily residing in Copenhagen.[6]
Petersen has 10.4 million followers on TikTok. [7]
Reiley was announced as one of the competitors of the Melodi Grand Prix 2023, the Danish national selection for the Eurovision Song Contest 2023, with the song "Breaking My Heart".[8] However, he was at risk of disqualification from the competition after it was discovered that he performed the song at the "Slow Life Slow Live" festival in Seoul, South Korea in 2022, a violation of the competition's rules.[9] Despite this, it was later confirmed that he would not be disqualified and would compete.[10] He later went on to win the competition, becoming the representative of Denmark, the first Faroese artist to do so. At Eurovision, he performed in the second semi-final, ultimately finishing 14th with 6 points, failing to qualify for the final.
2023–present: after Eurovision
Shortly after Eurovision, it was announced that Reiley would perform at the 2023 edition of Bátastevnan, a music festival held in Vestmanna, Faroe Islands, on 19 May 2023.[11] On 25 May, Reiley released a new single, titled "Lovesongs".[12] Reiley performed at the 2023 edition of Voxbotn, a music festival held on 23-24 May 2023 in Tórshavn.[13]