Sincerity and faith anchor the songs of Brooke Fraser. The Wellington-born singer wrote her 2003 debut single, “Better”, when she was still in high school. Seven years later, she topped the New Zealand chart with “Something in the Water”, co-written with her husband, Scott Ligertwood. She’s also a prominent member of Hillsong Worship, and her Christian faith rings out on tunes like the romantic piano ballad “Arithmetic”.