Agent Derpy

[Herp-a-derp-a-derp-a, Herp-a-derp-a-derp-a]
Derpy!
She's a cross-eyed four-hoofed equine of action
She's a feathered little mailmare who always makes the delivery (-ay-ay-ay!)
She's got more than just mad skillz
She's got a bag of letters & bills
And the bronies swoon, whenever they hear her say: "My bad!"
She's Derrrpy! Derpy the pegasus!
Derrrpy! Derpy the pegasus!
Derrrpy! Agent Derp!