Lange Frans & Baas B ("Tall Frans & Boss B") was a Dutch hip hop duo. Both Lange Frans (alias of Frans Frederiks) and Baas B (alias of Bart Zeilstra) grew up in Diemen, Netherlands. In 1997 they formed D-Men. The English pronunciation of "D-Men" is similar to the Dutch pronunciation of the name of their home town. As D-Men they released their first single in 1999, which was called Zoveel Mensen ("So Many People"), and they won a talent hunt that was organised by Stichting Grap ("Joke Foundation") in 2001.

Read more about Lange Frans & Baas B on Last.fm.