So Solid Crew are a UK garage and grime act whose hits include "Oh No" and "21 Seconds", the latter of which got to number one in the official UK Singles Chart in August 2001. Another hit, "They Don't Know", hit number three in November 2001 and "Haterz" got to number seven in January 2002. "Ride Wid Us" was less successful (UK number 21 in April 2002). They released one single, "Broken Silence" which spoke out about government prejudice which they had faced.

The So Solid Crew's first album They Don't Know was released in October 2001, followed by a remix album entitled ---- It in December 2001.

So Solid Crew are famous also for having many members. Megaman, Lisa Maffia, Kaish, Asher D, Romeo, Harvey, G Man, Face, Mac, Swiss, T Dub, Pds, Skat D, Morgan, Oxide, AC Burrell, Neutrino, Mr Shabz, Kowdean, The Twins, Sniper, Tiger S, Synth, Dan Da Man and Crazy. Lisa Maffia, Romeo and Harvey have all brought out solo chart singles since.

Oxide & Neutrino are also members who brought out singles but they released them before So Solid Crew. They released an album entitled Execute and the singles "Only Wanna Know U Cos Ure Famous / Dem Girlz", "Up Middle Finger" and "Bound 4 Da Reload" (which features music from the Casualty television show).

Members Harvey, Romeo and Lisa Maffia have all appeared on Channel Four celebrity reality show The Games and members Megaman, G Man, Harvey, Romeo and Lisa Maffia have all appeared on BBC's musical gameshow Never Mind The Buzzcocks. Harvey has now become a footballer at non-league football club Lewes F.C. , following a brief stint at AFC Wimbledon.

So Solid Crew set the trend on the underground scene and even today their success has been unmatched by any other garage crews or collectives.