But when it came to her makeup, Kelly Osbourne splashed out in her own typically loud and proud style, layering on cat-eyes and purple lipstick to match her hair as she attended Fergie's baby shower on Sunday.
The newly engaged 28-year-old was among the collection of stars invited to attend Josh Duhamel and the Black Eyed Peas frontwoman's special day, which was held at the SLS Hotel in West Hollywood.
Matchy-matchy: Kelly Osbourne showed up to help
Fergie celebrate her baby shower on Sunday in West Hollywood, wearing
heavy makeup that even matched her purple hair
The Fashion Police host began with a basic tailored black dress featuring long sleeves and only very basic detailing, carrying a shiny black handbag to match.
Kelly then opted for a bright purple shade of lipstick that matched her famously purple tresses.
Her eyes were lined with dark make-up, creating an exaggerated 'cat eye' look.
Plenty to be happy about! Kelly recently became
engaged to her boyfriend Matthew Mosshart and the pair seem to be
utterly smitten with one another
Kelly added another splash of colour with a fun pair of ice-cream cone heels by Karl Lagerfeld.
The TV personality had enthusiastically showed these off on Instagram the previous day, saying: 'Loving my new ice cream cone jelly heels designed by #melissa & #KarlLargerfeld'
The smiling Brit got a little assistance making her way up the stairs on account of the cute heels' high degree of difficulty.
In good company! Kelly had a fine time at
Fergie's baby shower, posing alongside Jullianne Hough, George Kotsi,
Lance Bass and Adam Shankman for this Instagram snap
Kelly and Matthew announced their engagement earlier this month and the happy starlet has been flashing her ring ever since.
The pair got engaged while holidaying on the Caribbean island Anguilla, two years after they met at the wedding of supermodel Kate Moss to musician Jamie Hince, Alison’s band-mate in The Kills.
In an interview with Hello! magazine, Kelly said: 'I've never felt this close to another human being, ever. People say we're co-dependent but we just want to be together all the time.'
Engaged! Kelly Osbourne and her fiance Matthew
Mosshart, pictured here at the Met Gala in New York in May, have been
dating since 2011 and the chef moved to Los Angeles from New York for
her
'Loving my new ice cream cone jelly heels!'
Kelly loved her heels so much that she Instagrammed them prior to
wearing them to her friend Fergie's baby shower
She loves that ring: Kelly recently uploaded a
snap of she and her father's manicures they got together, sneakily
showing off her engagement ring