So Solid Crew is a British music group formed in 1998, known for their contributions to the UK garage genre. The crew originally consisted of several members, including Asher D, Megaman, and Lisa Maffia. They gained popularity with their hit single "21 Seconds," which showcased their unique blend of rap and garage music. The group is recognized for their energetic performances and distinctive style, which helped shape the UK music scene in the early 2000s. So Solid Crew's influence extended beyond music, as they also addressed social issues in their lyrics, reflecting the experiences of urban youth in London.