As a solo artist, he was very successful in 2006 and 2007, selling more than 500,000 copies between his first studio album, The Bad Boy, and a compilation titled Los Rompe Discotekas, which was released under Roc-La-Familia.

This American record label was founded in 2005 by rapper Jay-Z, focusing on Latin hip hop and reggaeton.

In 2008, Víctor Alexis Rivera Santiago, most known as Lele, claimed that Héctor owed him royalties for 40 songs written between 2003 and that year, and sued him.

Both artists had issues between them, and Lele released a 12-minute-long diss track titled "O Me Pagas" with his duo companion Endo, claiming one million dollars for the songs he wrote for Delgado.

Despite being retired, Héctor participated in the 2010 compilation Golpe de Estado and in 2012 he collaborated with Wise, who wrote some of his songs and who is also a close friend.