Gwen Stefani and Blake Shelton are couple goals, so much so that they have released several loved-up duets together.And Blake recently got their fans talking after sharing a sweet clip from their song, Happy Anywhere, on Instagram, asking them to name their "favourite Blake and Gwen moment".MORE: Gwen Stefani's son Kingston reveals what he really thinks of dad Gavin Rossdale VIDEO: Gwen Stefani's son Zuma enjoys birthday celebrations on the beachComments soon followed, with one writing: "The