1. A computing system comprising: a network interface; at least one processor; a non-transitory computer-readable medium; and program instructions stored on the non-transitory computer-readable medium that are executable by the at least one processor to cause the computing system to: receive an identifier of a media playback system; link the identifier with a social-media account such that the media playback system is associated with the social-media account; based at least on linking the identifier with the social-media account, generate a social-media playback queue that is fillable with one or more media items that are playable by the media playback system; establish access permissions to the social-media playback queue, wherein the access permissions indicate at least one additional social-media account that (a) is within a social-media network of the social-media account and (b) has access to the social-media playback queue; receive, from a computing device affiliated with the at least one additional social-media account, an indication of a media item to be added to the social-media playback queue; and add the media item to the social-media playback queue.