Indicating Live Videos for Trending Topics on Online Social Networks

In one embodiment, a method includes sending, to a first client system of a first user, a first trending module having references to a first set of trending topics, where one of the references does not include a live badge; generate a trending-topic interface corresponding to a first trending topic in the first set of trending topics, wherein the trending-topic interface comprises a live module containing at least one live video associated with the first trending topic; storing a reference to the live module with a news-event object; querying the news-event object to determine whether a live module is associated with the first trending topic; and sending, to a second client system for display, a second trending module having references to a second set of trending topic that includes the first trending topic, wherein a reference to the first trending topic includes a live badge.