Pop singer Katy Perry is launching a line of nail polish, following the lead of teen star Justin Bieber.According to Billboard, Perry is working with Nicole by OPI -- the same company that is releasing Bieber's One Less Lonely Girl collection of nail polish for teens in December -- to create the Katy Perry for OPI line.Like Bieber's, the colors in Perry's line are named after her songs, including the pink glitter "Teenage Dream" and silver "Not Like the Movies," reports the New York Post.Perry's collection will debut in January 2011. The singer has regularly used her Twitter account to show off photos of her elaborate manicures. Bieber, to date, has not.
