It was an interesting weekend in fashion, as stars fearlessly stepped out in  the best and worst of trends.  Miley Cyrus enjoyed a weekend in Los Angeles,  wearing racy threads that were WAY too sexy for her age, while Amber  Valletta showed off her supermodel style at the Los Angeles premiere of The  Spy Next Door in an orange crush Rm by Roland Mouret Rainbow Collection  mini.

PHOTOS: Miley Cyrus, Natalie Portman, Rachel Zoe, Jordin Sparks, Kristin Cavallari, Bai Ling, Ke$ha, Lindsay Lohan, Snooki, Gwen Stefani, Jessica Alba, Stephanie Pratt, Katy Perry, Russell Brand, Vanessa Hudgens, Gabourey Sidibe, Padma Lakshmi, LaToya Jackson And Amber Valletta In Best And Worst

Katy Perry showed off her engagement ring, conservatively clad and coordinating with her hunky fiancé as they touched down in Los Angeles.

PHOTOS: More Best And Worst

What preggers reality show host was in stellar maternity mode in New York  City?  Check out the gallery in Style to find out.

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• Amber Valletta
• Bai Ling
• Best And Worst
• Gabourey Sidibe
• Gwen Stefani
• Jessica Alba
• Jordin Sparks
• Katy Perry
• Ke$ha
• Kristin Cavallari
• LaToya Jackson
• lindsay lohan
• Miley Cyrus
• Natalie Portman
• Padma Lakshmi
• Rachel Zoe
• RadarOnline
• Russell Brand
• Snooki
• Stephanie Pratt
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• Vanessa Hudgens