In one embodiment, a computing server receives from a client computing device a first upload that includes a set of multimedia objects on the client computing device. The set of multimedia objects is selected by a user of the client computing device. While the upload of the set of multimedia objects is in progress, the computing server concurrently receives, from the client computing device, a second upload that includes metadata entered by the user. The metadata corresponds to a subset of the multimedia objects, the subset being selected by the user from the set of multimedia objects.