Amy Robach has been holding the fort on Good Morning America this week alongside Lara Spencer, T.J. Holmes and Whit Johnson.MORE: GMA's Amy Robach enjoys fun night out with friends ahead of new challengeThe much-loved TV star has been making her colleagues laugh on air with her sense of humor, and even showcased her dance moves live on air on Tuesday's show.The group were discussing Pamela Anderson's upcoming Broadway debut in Chicago, as Amy told viewers at home: "Tomorrow on GMA Pamela Anderson is coming to talk about her upcoming Broadway debut on Chicago so very exciting."WATCH: Amy Robach shares sneak peek inside her incredible home as she gives it the ultimate makeoverLara then asked: "Isn't there some move on Chicago?" to which Amy replied: "Yes, it's 'And all that jazz,'" while miming the famous dance moves, much to the delight of her co-stars who started to laugh."There you go!" Lara said through laughter.MORE: Amy Robach highlights her toned physique in stunning photosAmy's family are very theatrical – not only does her daughter Ava study at the prestigious New York University Tisch School of the Arts, but her husband Andrew Shue is an actor.Amy lives with her family in New York, close to the GMA studios.