The Spezializtz are a German hip hop duo from Berlin, Germany, consisting of Oliver Harris and Dean Dawson.

Although the album didn't have a noteworthy impact on the charts, the rappers toured through Germany, Austria and Switzerland, performing with DJ Tomekk among others.

("Tut was Ihr nicht lassen könnt") was a chart hit and subsequently used for several commercials.

After a break, the duo celebrated their 10th anniversary in 2005, and plans for future performances and records were made.

festival 2006, toured Germany with Busta Rhymes in April 2007 and are planning to release the third GBZ-Oholika album.