"Como Duele" (English: How Much It Hurts) is a latin pop song by Guatemalan recording artist Ricardo Arjona, released on 4 November 2008 as the lead single from his eleventh studio album, 5to Piso (2008). The song was written and produced by Arjona along with longtime collaborators Dan Warner and Lee Levin under their stage name Los Gringos, with additional production work and background vocals from Puerto Rican singer-songwriter Tommy Torres. "Como Duele" is the first single Arjona releases after signing a record deal with Warner Music in 2008, after being signed to Sony Music since 1993.

Lyrically, "Como Duele" was intended to show "the monotony that attacks the couples that have many years together, the lack of passion and regretted love that seems to pose over them." The song became an commercial success for Arjona, becoming his first top ten single in the US Billboard Top Lating Songs since 2005 and, with a peak of No.2, his highest entry on that list since "El Problema" in 2002. It also became his sixth song to top the Latin Pop Songs chart, as well as reaching the top in Mexico and Venezuela. "Como Duele" was critically praised by media outlets, receiving comparisons to Arjona's previous song "Olvidarte", and being considered as his "biggest hit in years".

An accompanying music video for "Como Duele" was released in September 2008. It was directed by Ricardo Calderón and filmed in Mexico City. In the clip, focused on a department which rooms are being moved, Arjona is shown inside a room that goes empty, and everything that gave life to the place is going away until the department is finally demolished. "Como Duele" was included in the set list of Arjona's Quinto Piso Tour (2009) and Metamorfosis World Tour (2012).

After spending the majority of his career signed to Sony, and later, Sony BMG, Arjona signed a long-term recording deal with Warner Music Latina. The deal was closed in September 2008. Iñigo Zabala, chairman of Warner Music Latin America commented that "He's an artist that fits perfectly with our company," and that "We are a label that has a major catalog of songwriters and quality pop and rock from the likes of Maná, Alejandro Sanz, Laura Pausini, and now, Arjona." In an interview, the singer commented that while composing 5to Piso he "tried to recoup some of the freshness" of his past releases, stating that "it makes so good to the songs". He further stated that he believes "all albums are result of an evolution, and contradictions either", also stating that he celebrated contradictions as part of life. Arjona begun working on the album as early as 2005. Talking about the process of recording the album, he stated that "We must work to make the albums comfortable to us", further commenting that "The rest is a matter of how good or bad the albums defend themselves."

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