Blake Shelton and Gwen Stefani who have been a couple for a little over a year are finalizing their wedding plans. Though the 47-year-old mom of sons Kingston, 10, Zuma, 8, and Apollo, 2 (with ex Gavin Rossdale), and the Voice coach, 40 (who split from wife Miranda Lambert in July 2015), have yet to publicly confirm their engagement, a second pal insists they hope to marry “before the end of the year.” source