In Ella y Yo, Aventura and Don Omar tell the story of two lovers living a forbidden romance. Despite knowing that their love is wrong, they are unable to resist the temptation and continue to meet in secret. The song also speaks of the consequences of their actions, as the protagonist loses both his lover and his friend. The song ultimately serves as a warning to not give in to temptation, as it can lead to heartache and pain.

Aventura is a bachata group from the Bronx, New York, formed in 1996. The group consists of four members: Anthony "Romeo" Santos, Henry Santos, Lenny Santos, and Max Santos, all of whom are of Dominican descent, although Romeo is also half Puerto Rican on his mother's side. Aventura is one of the most internationally recognized Latin groups of the last two decades and frequently refer to themselves as "K.O.B.", or "Kings of Bachata". Aventura is widely credited with popularizing bachata music around the world, and their music has been described as a mix of traditional bachata and R&B, hip-hop, and pop. Aventura has been nominated for awards such as American Music Awards, the Latin Grammy Awards, Billboard Latin Music Awards, and Premio Lo Nuestro. They have sold out many arenas including the world famous Madison Square Garden.