Megan Moroney was forced to end her concert at Denver's Ball Arena after just three songs on Tuesday night (July 28) when an unexpected illness left her unable to continue performing. The emotional decision marked the first time the country star has had to cut a show short during her career, prompting a heartfelt apology to fans. Show Ends After Three SongsMoroney had only performed three songs before realizing she was too ill to continue. Ball Arena also confirmed the unexpected end to the evening, announcing that Moroney was unable to continue the performance because of illness. Denver Concert RescheduledDespite the disappointing outcome, Moroney quickly reassured fans that the Denver stop on her Cloud 9 Tour has already been rescheduled.