Loved Thomas the Tank Engine when growing up? Bet your obsession never went to the extremes of Neil Patrick Harris’ love for the blue train.

The Oscars host has gone slightly bonkers as he lets off some steam (get it?!) in this latest clip for Funny or Die.

So, whose the kid in this clip?!

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Want more? Here's a bit we love from Will & Woody – catch the boys weekdays from 4PM on KIIS101.1!