It was released as the third single album and composed of Marília Mendonça, Juliano Tchula and Rangel Castro.

On January 28, 2016 the song was made available for download on the social networks of the singer, a week after "Ai Coração" to be released.

The release of the song was so thunderous that broadcasters and websites commented that the letter could be interpreted as a message to her ex-husband, "There are things in life that we do not lose, we are free".

Asked about the letter during an interview for the radio FM O Dia,[2] Joelma claims that the letter could be interpreted in various ways and talking about getting rid of the bad things in general: a false friend, a bad job, etc.

Due to the success in the media, the song became the first official work of music, instead of "Ai Coração".