If you plan to engage in a game that includes cold calling celebrities, there are few better collaborators than Dwayne “The Rock” Johnson, one of the world’s most renowned actors.

In the clip above, The Smashing Machine star joins BBC Radio One host Greg James for a round of “Sit Down, Stand Up,” where they alternate calling famous acquaintances and discerning if they are seated or standing.

The outcome? A delightful conversation between The Rock and UFC heavyweight titleholder Tom Aspinall, along with an intriguing glimpse into the unusual voicemail greeting of The Smashing Machine director Benny Safdie.