Poppy Delevingne and Erin O'Connor lock lips to support the fight against blood cancer, while Drew Barrymore finds something fishy in Korea and Naomi Campbell proves she will always be on point.  Come dive into all the A-list Instagram action right here.

The best A-list Instagrams from the week so far

Naomi Campbell... en pointe as always

Joel Madden shouts out to Nicole Richie on her birthday

Amanda Seyfried's guest of honour

Poppy Delevinge and Erin O'Connor share the love

Drew Barrymore finds something fishy

Rosie Huntington-Whiteley squeezes in her caffeine fix

Lupita Nyong'o's outfit of the night

Amy Schumer takes a stand

... before taking us behind the scenes of her GQ shoot

Alexa Chung steps into the ring

Cheryl shows Liam Payne how it's done

Drew Barrymore finds her next beauty fix

Rosie Huntington-Whiteley checks out

Mindy Kaling finds her muse

Kate Hudson enjoys a midnight feast

Karlie Kloss ticks off the bucket list

Jessica Biel goes for the chop

Blake Lively takes colour matching very seriously

Bella Hadid and Winnie Harlow party at London Fashion Week

Emma Watson champions sustainable fashion

Lena Dunham finds her namesake

Rosie Huntington-Whiteley kicks back in style

Jessica Chastain hangs with the locals

Katie Perry pawns out her pup

Victoria Beckham enjoys some motherly love

Cruz and Harper Beckham get to work

Reese Witherspoon shouts out to the lady of the moment

Drew Barrymore hits the beauty aisle

Alexa Chung shares a sneak peak of her next collection

Lupita Nyong'o heads into battle

Even Kim and Kanye can't resist a bathroom selfie

Adele raids the campus shop

Cindy Crawford enjoys the simple things

Rosie Huntington-Whiteley flashes her jewels

From Poppy Delevingne's kiss for a cause to Amanda Seyfried's puppy party

From Poppy Delevingne's kiss for a cause to Amanda Seyfried's puppy party: this week's best A-list Instagrams