Strictly Come Dancing this year, impressing the judges with both his ballroom and Latin routines.But who is the star, who is partnered with pro dancer Janette Manrara?MORE: Strictly's HRVY shares new health update after testing positive for COVID-19Best known as a singer who has supported major artists on tour, the 21-year-old has been building an impressive career over the last few years.He's also set tongues wagging with rumours flying about his flirtation with one of his co-stars!So who is