Thanks Brno and rharv!
I hope this translation will be good:

Oscar is Argentinian
And dances the tango
Every single morning
With certain horses

Chorus:
To tame them
And win their trust
He knows how to soothe them
Dispelling their mistrust

There's no rush
The gesture is friendly
Without causing stress
Respecting each horse

Oscar has the art of approaching horses
With his gentle voice, he knows how to reassure them
Facing their fear, his kindness prevails
He is never heard shouting

And when he rides bareback
Just for a few steps
He imagines himself on it
In the heart of the pampa