Grand like Lorde and sunshine-bright like Katy Perry, singer/songwriter Daya first climbed the charts as a 16-year-old high school junior. Born Grace Martine Tandon -- "daya" is the Hindi word for "grace" in a nod to her Indian grandfather -- and raised in the Pittsburgh suburb of Mount Lebanon, she began taking piano lessons at the age of three, and moved on to voice lessons at the age of ten. Songwriting came later, and in 2014 she signed with the Z-Entertainment label based on her demos. A year later, her single "Hide Away" took off thanks to early adopters like Tyler Oakle...