Gwen Stefani has teamed up with “denim expert” Michael Glasser, founder of 7 for All Mankind, and Citizens of Humanity, to create an affordable clothing line. Design With a Purpose, or ‘DWP’, is due to hit stores this coming Spring. The singer has designed pieces including moto vests, blouses, slouchy pants and crop tops that will range in price from $80 to $130. The line is both affordable and eco-friendly, making it a sister-line to her label L.A.M.B which has been active since 2004. Along with her new line ‘DWP’, Stefani has also just released a nail polish collection for OPI.