The singer is now embarking on her first US tour this fall. The 21-city tour begins Oct. 8 in San Diego, Calif. "This is a brilliant moment for me," Boyle said in a press release. "I am so very proud to be announcing that I will be performing in my very own tour in the USA. This really is fantastic. The past five years have been incredible and it just keeps getting better. I have spoken so often about wanting to tour America and be able to visit different cities for the first time, I'm so excited."