Plan B is a Puerto Rican reggaeton duo, consisting of Chencho (real name Orlando Javier Valle Vega) and Maldy (Edwin Vázquez Vega), born in Guayama, Puerto Rico. They used to be called The Panic until after their song, "¿Qué Es Plan B?," in Reggaeton Sex Vol. 2 because everyone, then, recognized them as Plan B.

Plan B released an album in 2002 called Los Que La Montan. It featured collaborations with Daddy Yankee, Speedy, Rey Pirin, Great Kilo, Guelo Star, and other artists and producers. Chencho and now Maldy are both producers, Chencho has his own record label by the name of Chencho Records, Maldy has his, Maldy Records. Maldy's album, named Reggaeton De Markesina, has featured Chencho, Speedy, Opi, Jason, Don Chezina, Lennox and many more.

They have been featured in many productions including Luny Tunes y Noriega: "Mas Flow" (Song: Tú Sabes), DJ Sonic's "Los Abusadores", Guatauba XXX. DJ Blass also from Guayama produced many of their songs including hits like "Frikitona", "Mencionando Tu Nombre", "¿Qué Es Plan B?", and more.