Lo Siento Mucho"Lo Siento Mucho" is a song by Mexican duo Río Roma and singer Thalía. It was released by Sony Music Latin on February 28, 2020.The song was a hit in Mexico where it was certified gold.Background and releaseThe song was released on February 28, 2020. The song was written by José Luis Roma who also composed several songs for Thalía's album Amore Mío in 2014 and since then has kept a close friendship with her.Music videoThe music video for the song was released on the same day. The video features Río Roma and Thalía singing the song while a couple is going through rough times as their relationship ends.