The group released the first single from its fifth studio album, "Pentru '98" (For '98) in June 1998. Although commercial sounding and easygoing, the track was met with reluctance by both radio stations and fans alike. A music video was shot by the then newly formed Atomic TV music channel, but the result was disappointing for the group's members and management and thus the video was never released. An unexpected success came from the single's b-side, a song entitled "N-ai fost acolo" (You weren't there), a viral response to critics claiming that the group's lyrics were pure fiction and had no factual basis whatsoever, became a massive hit during the summer and provided a strong launch pad for the album's release in September 1998. "De Cartier" (From The Hood) was B.U.G. Mafia's best selling album, moving over 125,000 copies and catapulting the group to national superstardom. The album's success attracted pop icon Loredana Groza's interest for a collaboration. The resulting song, "Lumea e a mea" (The world is mine) was released as a single in late 1998 and became an instant hit in Romania. The success prompted the making of a music video, which was the first Romanian hip hop video ever made.