Nesty "La Mente Maestra" (born Ernesto F. Padilla on September 5, 1973) is a Puerto Rican reggaeton music producer. He is currently signed with Machete Music. He was closely associated with reggaeton duo Wisin & Yandel and reggaeton producer Victor "El Nasi". Nesty began his recording career as an associate of reggaeton hitmakers Luny Tunes during the early to mid-2000s. Known simply as Nesty, he made a name for himself apart from Luny Tunes with a pair of hit singles in 2005: "Chulin Culin Chunfly" (Voltio ft. Calle 13) and "Eso Ehh...!!" (Alexis & Fido).
In 2006, Nesty produced tracks for high-profile albums by Don Omar (King of Kings) and Tego Calderón (The Underdog/El Subestimado), including the hit single "Los Maté" by the latter. Around this same time, Nesty began a close association with Wisin & Yandel, producing much of their album Los Vaqueros, including the hit singles "Pegao," "Yo Te Quiero," and "Nadie Como Tú." In subsequent years he remained closely associated with Wisin & Yandel, producing the bulk of their album Wisin vs. Yandel: Los Extraterrestres, including the chart-topping hit single "Sexy Movimiento," and Wisin & Yandel Presentan: La Mente Maestra in which he was co-billed on the front cover of the latter album. On May 19th it was confirmed that Nesty would not participate in the re-edition of the album Los Vaqueros: El Regreso, named Reloaded.