This Sienna Miller News Will Make Your Day

OMGSienna Miller might just be the last celebrity we expected to pop up on Instagram. Notoriously private, we rarely catch a glimpse of the style maven unless it’s ahead of a fancy film premiere or star-studded red carpet party.
And now, the 35-year-old has finally given in and has officially made her debut with this super-sweet black and white snap, quite literally introducing herself to the world.
Joining her fellow BFF’s Poppy and Cara Delevingne, the mum-of-one created the @sienn