"Is it worth it? Let me work itI put my thang down, flip it and reverse itTi esrever dna ti pilf nwod gnaht ym tup i" 'Under Construction' features some of Missy Elliott's biggest hits, including "Work It" which became an instant classic in the hip-hop canon. Her fourth studio album is widely regarded as one of her most iconic and influential works. Released in 2002, the album was primarily produced by Timbaland, with additional production by Craig Brockman, Nisan Stewart, Errol "Poppi" McCalla and Elliott herself. The album's themes explore the construction of self, both personally and artistically, and the evolution of hip-hop culture.