The Best, Worst & Wackiest Dressed Stars Of The Week!

Kim Kardashian sizzles in a bikini, Chanel Iman is beautiful in brown and Jennifer Aniston gets a terrible make UNDER in RadarOnline.com's gallery of the best, worst and wackiest dressed stars of the week.

BEST: Kim Kardashian shows off her slimmed down figure in Thailand.

BEST: Leslie Mann looks trendy in a Giles dress at 'The Other Woman' London premiere.

BEST: Cameron Diaz rocked a leather LBD from The Row at 'The Other Woman' London premiere.

BEST: Kate Upton channeled old Hollywood glam in her William Vintage dress at ‘The Other Woman’ London premiere.

BEST: Melanie Griffiths rocks a 70s riding outfit look.

WORST: Tallulah Willis' sloppy outfit is a fashion miss this week.

WACKIEST: Lady Gaga in her couture tutu.

WORST: Lady Gaga forgot her clothes!

WORST: Emmy Rossum's frumpy outfit is a fashion miss this week.

BEST: Taylor Swift and Karlie Kloss are city chic in New York.

BEST: Janice Dickinson rocks a pair of colorful jeans.

BEST: Kyle Richards is a snappy dresser for a lady who lunches.

BEST: Alek Wek looks fabulous in this pink and blue dress.

WACKIEST: Tyson Beckford proudly wears a loud pink jacket.

BEST: Minnie Driver rocks a figure fitting Herve Leger dress at 'The Red Carpet Trail' premiere.

BEST: Chanel Iman looks beautiful in this sexy brown outfit.

WACKIEST: Rita Ora wears a clown-inspired jump suit.

BEST: 50 Cent rocks the big gold necklace.

WORST: Jennifer Aniston had a massive make UNDER on the set of her new movie 'Cake.'

BEST: Heidi Klum's leather LBD is a fashion hit.

BEST: Mel B's sexy crop top steams up the red carpet.