05/10/2013 10:45 am ET Updated May 10, 2013

Rihanna's Sweatpants Top Our Worst-Dressed List This Week (PHOTOS)

The theme for this week's worst-dressed list is stripes. Specifically, how not to wear the graphic pattern. Style stars like Solange Knowles and Kylie Minogue wore wide stripes that looked comical.

Then there was Katy Perry, who took her love for a theme to the next level of outlandishness. Check out those over-the-top looks, as well as more celebrities who made our week's worst-dressed list. Do you agree with us?

Head over to our best-dressed gallery to check out this week's style winners.

Worst-Dressed Celebrities Of The Week

Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr, Pinterest and Instagram at @HuffPostStyle.
Do you have a style story idea or tip? Email us at (PR pitches sent to this address will be ignored.)