Watch: Chris Pratt's prank phone call to a pet shop is as bizarre as you'd expect

During his seven seasons on Parks and Recreation, Chris Pratt became something on an improv master.

Legend has it that the below scene in which his character Andy re-enacts Road House was completely unscripted with the only directions on the page being "Pratt talks about Road House."

During an appearance on BBC Radio One this morning the Guardians of the Galaxy star's improv skills were put to the test when he was tasked with prank phone calling a pet shop and beginning each new sentence with the next letter of the alphabet.

Adopting the persona of an elderly grandfather, Pratt gave his all to the game. Things got a bit ropey when he reached the letter 'X' but he managed to come through with flying colours.