Gwen Stefani and Blake Shelton are probably one of the most beloved celebrity couples out there—and they have just earned some extra sweetness points after fans got to see a super-cute behind-the-scenes video of the duo celebrating Gwen's youngest son Apollo on their own wedding day. Gwen, who recently shared a sneak peek inside her and Blake's home together, posted the never-before-seen clip on her own Instagram account on Valentine's Day earlier this week. The video is set to Blake's own song, We Can Reach the Stars, a track that the singer actually wrote as a gift to his now-wife.