Susanna takes on Sean in our plank-off challenge
We're all embracing our Eat More, Lose More diet and fitness plan here at Good Morning Britain, and Susanna and Sean are no different as they line up for our hotly-contested plank-off challenge.
Who's your money on? Sean knows a lot about sport, but can he come up with the planking goods? We bet Susanna will want to beat Piers' plank-off effort - but how long can she hold the pose for?
There's only one way to find out - give the video above a watch now!