CALLAGHAN HOMETOWN: Boston, Lincolnshire, England INFLUENCES: Johnny Cash, Buddy Holly, James Taylor ALBUM: Life in Full Colour, due out May 1 WEBSITE: callaghansongs.com Georgina Callaghan was playing flute by age 6, learned piano shortly afterward, began writing songs at 14 and by 18 made the long trek from her small hometown to London to pursue a life in music. She slept under the kitchen table in her sister’s tiny apartment while gradually... 

SHAWN MULLINS How crossing the divide between Atlanta and Nashville lit up his world A dozen years ago, the Top 10 hit “Lullaby” and platinum album Soul’s Core catapulted Atlanta-born singer and songwriter Shawn Mullins into the limelight. Before long he found himself opening arena shows for the likes of ’N Sync, the Backstreet Boys and Destiny’s Child—and becoming increasingly uncomfortable with his place in that overblown pop world....