Image Credit: WireImage Young Thug proposed to his girlfriend of four years, Mariah the Scientist, on stage at his December 2025 "Hometown Hero: Young Thug & Friends" benefit concert - and the moment became one that they and fans will never forget. As seen in viral videos online, Young Thug got down on one knee on stage and popped the big question, which Mariah easily answered with a "yes." Fans erupted into cheers for the happy couple. Learn all about Mariah, Young Thug's fiancée, below.