Nico Wellenbrink (born January 7, 1993), professionally known as Nico Santos or occasionally as Santos or Santi, is a German singer-songwriter. In 2017, after having been featured on Topic's hit "Home" (2015), he released his breakthrough solo single "Rooftop", which reached the top five in German-speaking Europe, Poland and Slovakia, as well as number one in the Czech Republic. It also received several certifications, including tripe gold by the German Bundesverband Musikindustrie (BVMI) and quintuple platinum by the International Federation of the Phonographic Industry Switzerland (IFPI SWI). Santos' debut studio album, Streets of Gold, was issued in October 2018 and yielded other moderately successful singles alongside "Rooftop", such as "Safe" (2018) and "Unforgettable" (2019).