Jessica Alba, Ken Jeong and Kate Mara tried their best to hold their nerve on James Corden last night. 

The celebrity trio took part in a game of flinch, whereby they each stood behind a glass wall and tried their best not to flinch when the host fired apples, avocados and other fruit at them from a little mini canon. 

Of course Corden didn't want his guest to get too worked up about the prospect of being shot at so he led them into a false sense of security before firing at them mid conversation. Kate Mara was wise to his tactics though by the time it got to her turn to stand in the line of fire. 

In the end, Corden decided to show them all how it's done by getting behind the glass himself and credit to him he didn't flinch and inch. Unless you could a blink. Which we don't.