LATEST: Pop diva Mariah Carey has become only the second artist to score 18 U.S. number one singles - beating the late Elvis Presley into third place. The singer's new song, Touch My Body, surged up the Billboard Hot 100 countdown to take the top slot after being made available as a digital download. Carey has now claimed her 18th number one single, leaving her just two short of The Beatles' record. The Heartbreaker star was previously tied in second place with Presley - who topped the U.S. pop charts 17 times. But Carey, who celebrated the news while on a promotional tour in London, insists she could never compare herself to musical greats such as Presley and The Beatles; she's just pleased to still be enjoying success 18 years after releasing her first album. She says, "I really can never put myself in the category of people who have not only revolutionized music but also changed the world. That's a completely different era and time ... I'm just feeling really happy and grateful."