Cartagena faced a charge of failing to pay taxes on millions of dollars of income in 2007 and 2008. His lawyer issued a statement saying that Cartagena plans on paying back the taxes before his sentencing next April.
Fat Joe's most recent studio album was 2010's The Darkside Vol. 1, and his only release since then was the mixtape The Darkside Vol. 2 in 2011.
When U.S. Magistrate Cathy Waldor asked him in federal court if he understood the charges he faced, Cartagena reportedly replied, "I super understand it."