The style sensation arrived fresh from Texan music festival SXSW this morning to apply herself at the unveiling of the British Designers Collective store at Bicester Village.
During the unveiling of the store, which sells cut-price pieces by designers including Peter Pilotto and Preen, Chung certainly seemed at home in her new role as Young Style Ambassador for the British Fashion Council, admitting that when it comes to shopping, she just can't help herself.
"Its a terrible habit that I cant kick," said Alexa, legs tucked underneath her on a sofa in the VIP interview room. "At the moment Im living in New York so that affords me the opportunity to buy a lot of good vintage clothes, theres more available there at a lower price. I treat myself to designer clothes when I want to invest in things that will last a while. For things I just want to use as basics, or to brighten up my wardrobe, then Ill try and find them in vintage places."
Chung was appointed BFC ambassador during the recent February edition of London fashion week and will now lend her support to British fashion initiatives.
I genuinely think British designers make some of the most brilliant and innovative clothes out there," said the ELLE style icon wearing a Bella Freud top and brocade Celine skirt, and Im British.
When it comes to plucking out her favourite designers, Alexa says she is spoilt for choice. "The [London fashion week] shows we just saw were amazing. Christopher Kane, Erdem, Mary Katrantzou theres this new rush of talent thats really worth stopping by for; if that is now the standard we've got, then hopefully it will encourage even more talent to grow out of that. Ive got my Bella Freud jumper on today and I really love her things, Christopher Kane is my go-to now, as well as Chanel. He [Kane] has got a sense of humour, and designs interesting clothes, clothes that arent just pretty, but that have a different message."
With her new ambassadorial role and a desire to wear clothes that possess a deeper message, are we interviewing a new grown-up Alexa?
"Supporting young British designers is important to me." She said, "I feel like my role has grown-up a bit."
This years British Designers Collective store at Bicester Village will run from 21 March for a limited time only.