Possible Clues:

• XXL article subjects
• Toasters at dinners
• Roasters and toasters, perhaps
• People who introduce speakers: Abbr
• Puts on a show, for short
• Hosts at roasts
• Audra McDonald and Leslie Odom Jr., at the '21 Tonys
• Banquet VIPs
• Club VIPs
• Some rap performers, for short