By Andrea Burzynski NEW YORK (Reuters) - With a son on the way and a new album with more original songs than ever, Michael Buble is venturing into uncharted territory without letting go of his personal or artistic roots. "To Be Loved," the 37-year-old Canadian singer's follow-up to his 2011 "Christmas" album, mixes standards inspired by jazz, Motown and even the Bee Gees, with tracks written by Buble as well as collaborations with Bryan Adams and Reese Witherspoon. "I wanted everything to be soulful," Buble told Reuters. The album grabbed the top spot on the U.K. ...