Can I combine Martial Arts and Horde Breaker?

Can I use the martial arts feature on the second attack granted by horde breaker?

I.e., hit the first target with a weapon, use martial arts to unarmed strike, then use hoard breaker to jump to the second target and repeat?

I know I can’t use Horde Breaker multiple times, perhaps I was unclear in that. My question is, does Horde Breaker give me another full attack round thus allowing me to use Martial Arts again in that attack’s bonus round?