Blake Shelton and Gwen Stefani are still going strong and fans of the power couple have a lot to look forward to when Shelton’s new album “If I’m Honest” is released May 20. At “The Voice’s” Karaoke for Charity event, Blake opened up to “Extra’s” Renee Bargh about the song he wrote and recorded with his girlfriend. Renee also caught up with the rest of "The Voice" coaches, Adam Levine, Christina Aguilera, and Pharrell Williams.