Plain Simple is a Canadian pop duo consisting of sisters Jessica and Lisa MacIsaac. Hailing from Prince Edward Island, the pair rose to fame in 2012 with their viral cover of Carly Rae Jepsen's "Call Me Maybe." Known for their sweet harmonies and catchy melodies, Plain Simple has released several albums and singles, including "A Cradle in Bethlehem," "Diamonds," and "More Than You Know." Their music blends elements of pop, folk, and country, creating a sound that is both heartwarming and uplifting.