It's a good thing Chuck Berry isn't dead yet, or else he'd be rolling in his grave faster than a pinwheel.

Lyrics:

Deep down Equestria close to Ponyville
Way up in the sky where the birds like to chill
There stood a cloud house light as feathers and ash
Where lived a pegasus by name of Rainbow Dash
She never graduated at the top of her class
But when she's flappin her wings, Goddamn she goes fast

Go, Go Dashie Go, Go 
Go Dashie Go, Go
Go,Dashie, Go, Go
Go, Dashie, Go, Go
Dashie B. Goode

She used to work a job giving sun and rain
But from her stunts and tricks she could not refrain
She'd twirl and zoom and she's drop and spin
Makes standing around feel like a deadly sin
All the ponies on the ground would shout and cry
Good lord, that little mare can fly!

Chorus

Her friends all told her "Honey, you don't need no colt."
One day you'll be the leader of the Wonder Bolts
Many ponies coming from miles around
To watch you in the air til the sun goes down
Maybe someday your name will be in the lights
Saying Dashie B. Goode tonight

Chorus