Montañez was born Fernando Borrego Linares in Sierra del Rosario mountain range, on a farm known as El Brujito within the Candelaria municipality.
At an early age he worked various jobs including driving a tractor, milking cows, making charcoal, assisting on the family farm, and as a lumberjack.
In around 1994 when the Complejo Las Terrazas was founded, Polo and his own ensemble of sort started playing at its different touristic installations, like Hotel Moka, Rancho Curujey and Cafetal Buenavista.
He has visited Colombia five times, France on two occasions; he has performed in Portugal, Belgium, the Netherlands, Italy, Mexico, Ecuador, and Costa Rica too.
Soon after his death the songwriter José Valladares composed a song in honour of Polo entitled "Cazador de Estrellas" (Star Hunter), which was interpreted by various artists such as Pedro Calvo, Paulito FG, Jenny (Los Van Van's vocalist) among others, making a tribute to the unforgettable figure of the Guajiro Natural.
His greatest hit in his career was the song "Un montón de estrellas", included on his albums Guajiro Natural and Memoria, demonstrating his influence and love for everything that touched his heart.