Greeicy remained in Cali for the first five years of her childhood, until her parents, Luis Alberto Rendón and Lucy Ceballos, decided to move to Bogota.

[2] Her first onscreen appearance was in the 2007 edition of the reality show for talent children's Factor Xs, being sponsored by the singer and composer José Gaviria.

Although she did not win,[3] her appearance in that program gave her the opportunity to be included in a casting, which meant entering the world of acting.

[4] Her first role as an actress was in 2009 in the telenovela, Cuando salga el sol as Carolina Parra, the daughter of the main couple.

[15][16][17] In 2014, she was announced as the youth protagonist of the telenovela La ronca de oro,[18] based on the life of the Colombian singer, Helenita Vargas.