After setting up her own clothing line LAMB in 2003, the 43-year-old singer has turned her hand to cosmetics to create seven limited-edition nail varnishes for OPI, reported Entertainment Weekly.
"Known for her trademark red lips, bold eye makeup and nail art, Gwen uses beauty to accessorize her style. OPI wanted to create a collection as dramatic, diverse and glamorous as its namesake," Suzi Weiss-Fischmann, OPI's Executive VP and Artistic Director, said in a statement.
The funky shades have names inspired by some of Gwen's most famous tracks, include 'Over & Over A-Gwen', 'Hey Baby', 'In True Stefani Fashion', '4 in the Morning' and 'Love Angel Music Baby'.
The new line is expected to hit major US retailers in January 2014.