Kate Hudson wakes up to a saucy birthday surprise, while Chrissy Teigen and John Legend introduce new baby girl Luna.

From new bling to mother-daughter moments: this week's best A-List Instagrams

Reese Witherspoon is all set for summer

Kim Kardashian spends the day with her mini-me

Diane Kruger gets into the party spirit

Emma Roberts has relaxation down to a fine art

Lena Dunham shows off her anniversary gift

Madonna pays tribute to Prince

Kate Hudson makes a wish

Lady Gaga is the princess of pop

Naomi Watts shares the headshot that secured her big break

Kate Bosworth gets attached to her bling

Brie Larson throws it back to an awkward moment

Emmy Rossum's living the high life

Naomie Harris spends the evening with the Game of Thrones girls

Naomi Campbell throws it back with Kate Moss

Allison Williams shares her speech in support of Lena Dunham

Karlie Kloss gets glam

Kylie Jenner works a messy bob

Jessica Alba enjoys coffee with a view

Alexa Chung keeps the festival going

Gigi Hadid gives us hair envy

Victoria Beckham enjoys birthday celebrations with the family

... while David Beckham pays tribute to the birthday girl

Chrissy Teigen introduces baby Luna Simone

... before John Legend shares another sweet snap

Kate Hudson celebrates her birthday with family and friends

... after starting the day with the surprise arrival of three topless men in her front room

Of course, birthday meditation is an essential for Kate Hudson

Harper Beckham hits the books

Blake Lively shows off her jewels

Reese Witherspoon is dripping in diamonds

... for dinner at Tiffany's with Naomi Watts

... before spending time relaxing poolside

Drew Barrymore is honoured with a humanitarian award

Mindy Kaling's with the band

Emma Roberts isn't ready to go home

Zoe Saldana shares a sweet sunset moment

Jessica Alba shouts out to her grandparents

Madonna pops in for a drink

Kylie Jenner coordinates her poolside wardrobe

Kate Bosworth does date night

Suki Waterhouse wears the rainbow

Salma Hayek gets back to nature

Gwyneth Paltrow makes a perfect pooch

Mindy Kaling shows support for the Boston marathon runners

Jessica Chastain gives us major shoe envy

Allison Williams' pup puts things in perspective

Kim Kardashian knows the joy of having an older sister

Naomie Harris spends time in cowboy country

... and gets into the Texan spirit

... before making new friends

Jessica Alba snaps a selfie on touch-down

Taylor Swift and Karlie Kloss get stuck in at Coachella

James Corden keeps Gwyneth Paltrow out past bedtime

Gwen Stefani snaps a selfie of her braided 'do

... while Goldie Hawn throws it back in honour of the birthday girl

... and Reese Witherspoon sends her wishes

Lena Duham loves to vote

Allison Williams is lost for words

Amy Schumer isn't keeping her vote a secret

Kate Bosworth gets glam

From new bling to mother-daughter moments

This week's best A-List Instagrams