High Quality Content by WIKIPEDIA articles! The Billboard Adult Contemporary chart ranks the best-performing singles in that category in the United States. The first number-one song of the year was by Taylor Swift with "You Belong with Me", a position it held for five non-consecutive weeks. On the Adult Contemporary Songs 2010 year-end list, "You Belong with Me" finished in eighth place.Michael Buble's "Haven't Met You Yet" peaked at number one for three non-consecutive weeks, and finished in third place on the 2010 year-end list.Colbie Caillat topped the chart for five non-consecutive weeks with "Fallin' for You", and ranked at number six on the year-end list. "Need You Now" by Lady Antebellum topped the chart for 15 non-consecutive weeks, and ranked as the number one Adult Contemporary song on the year-end list. "Need You Now" became Lady Antebellum's first number one song on the Adult Contemporary chart.Train's "Hey, Soul Sister" peaked at number one for 19 non-consecutive weeks,...