Swatch of Katy Perry's Last Friday Night OPI Nail Polish

by Jaime Richards 11

Back in October, we found out that Katy Perry would be coming out with her own line of OPI nail polishes, and now they're here. Yesterday Team Bella sampled all six shades in the collection, including the color pictured here, Last Friday Night ($7, but prices will vary depending on retailer).

While it's described as a bold cobalt blue with iridescent glitter, the result was more of a light pastel blue with flecks of cool-toned glitter — and that was with three coats. This further proves that judging a bottle by its color is never the best determiner of the true results. Last Friday Night is still a cool shade, especially as a top coat, but don't expect this particular hue to pack as much punch as the electric-blue wig Katy wore to the MTV Movie Awards last year.