Forget about 2014, “All About the Bass” was one of the biggest hits of all time, topping music charts all over the world. But has Meghan Trainor turned her back on her native Nantucket? Nope. The other day, Trainor happily posed for photos with young fans (Katrina Hancock, at right) at a fund-raiser for the Nantucket United Methodist Church, where she and her parents are members. The 21-year-old singer will spend New Year’s Eve in Los Angeles, where she’ll perform as part of “Dick Clark’s New Year’s Rockin’ Eve.” Taylor Swift, One Direction, and Charli XCX are also on the bill.