The best celebrity beauty looks of the week

Blake Lively was the epitome of radiance with her blonde hair left down in tumbling beachy waves, with the star also mastering the pink lipstick trend, opting for a matte shade. 

Cheryl turned heads at Simon Cowell's summer party when she stepped out rocking a gorgeous new dark brown hair colour, which she complemented flawlessly with bold, voluminous lashes and nude lipstick. 

Michelle Keegan floored fans when she hit Revlon's Choose Love masquerade ball, flaunting her new blonde locks by wearing them down with heaps of volume at the roots, upping the glamour stakes with shimmering eyeshadow and long, dramatic eyelashes. 

All eyes were on Cara Delevingne as she arrived for Comic Con where she debuted a new shoulder length bob hairstyle, completing the look with a slick of statement red lipstick and her famous bushy eyebrows flawlessly groomed. 

Zoe Saldana gave us summer make-up inspiration with her pale blue eyeshadow and pink lipstick combo at the Star Trek: Beyond premiere. 

Mila Kunis kept fans guessing when she hit a screening of Bad Moms with her glossy black tresses in a short wavy style, which later turned out to be a faux bob. 

Alicia Vikander channelled old Hollywood as she headed to the Vegas premiere of Jason Bourne where she wowed with her hair swept to the side in cascading curls, teamed with a hint of winged eyeliner and pink glossy lipstick. 

Jenna Dewan-Tatum was the epitome of laidback glamour with her bob left down in tousled waves and a bold red lipstick to complete the look. 

Jessie J showed off her edgy side with her platinum blonde pixie cut worn down in a sleek style, teamed with dramatic eyelashes and matte lipstick for a laidback yet chic finish. 

Adriana Lima showed off her radiant complexion with a hint of strobing at a Marc Jacobs dinner, giving us major hair envy with her glossy blow-dry 'do.