You might recall the last time Mark Ruffalo was on Graham Norton, he astounded us with his unicycling skills. Here's a little reminder.
He's not the only A-lister who's capable of getting up on a one-wheeled bike on national television.
Joining Ruffalo and Meryl Streep on the Red Couch was James McAvoy, who felt he was up to the challenge of unicycling.
To be fair to both of them, they're better than us at unicycling.
We can't imagine Foster's Circus is going to give them a ring anytime soon, however.
