From the source:
 
Teenage Mutant Ninja Ponies  
Teenage Mutant Ninja Ponies  
Teenage Mutant Ninja Ponies  
Ponies in a half-shell  
Pony power!
 
They’re the world’s most friendly friendship team (We’re really hip!)  
They’re ponies, in a half-shell and one’s pink (Hey - get a grip!)  
When the evil Discord attacks  
These Pony mares, don’t cut him slack!
 
Teenage Mutant Ninja Ponies  
Teenage Mutant Ninja Ponies
 
Zecora taught them to be a ninja team (She’s a radical Zebra!)  
AppleJack leads, Twilight Sparkle does machines (That’s a fact, Jack!)  
Rainbow Dash is cool but crude (Gimme a break!)  
Pinkie Pie is a party cook (Party!)
 
Teenage Mutant Ninja Ponies  
Teenage Mutant Ninja Ponies  
Teenage Mutant Ninja Ponies  
Ponies in a half shell  
Pony power!