Yes!
You're able to use Lickd music on a wedding video uploaded to YouTube or other social channels.
If you are the videographer, you can upload it to your own YouTube channel as long as the video does not also include any promotion of your wedding videography business. Sharing your personal logo/image within the video is permitted and does not count as a brand-sponsorship.
If you are the ones getting married (congratulations!), you can upload the video to your own YouTube channel, and as long as you do not plan to monetise the video (e.g. with YouTube adverts), you won’t need a Lickd license. If you wish, you can then share the YouTube link to Facebook.
If you want to upload the video directly to Facebook or Instagram, they will “mute” the music. If the track is available for use on another platform aside from YouTube, then you can purchase a Lickd music license and appeal for them to un-mute it (with the Lickd license as proof of usage).