Hot on the heels of the release of Newsweek's highly anticipated 'Mad Men' issue, The Daily Beast's Brian Ries will play host to four well-regarded advertising executives—the modern Mad Men—for a live chat during the first hour of the show's Season 5 premiere. The chat will be embedded in the frame below, and readers are invited to take part. We'll kick things off Sunday March 25, at 9 p.m. ET. If you'd like to join the conversation on Twitter—we'll still feature your tweets in the chat—the hashtag is #MadMenChat.