Agenda: Olsen girls; Hannah Arterton; London's Roundhouse; Girls; Vintage Tea Party

Fashion: Olsens put their best feet forward

Those Olsen girls have got some fashion flair: their luxury label The Row narrowly missed out on an award from the Council of Fashion Designers of America earlier this year, and now they've announced a collaboration with footwear label Toms. Rendered in the brand's signature espadrille style, their line swaps the standard canvas material for soft, sumptuous Italian leather and snuggly cashmere. But just like any other pair of Toms, each purchase will be matched by the donation of a pair of shoes to children in the Third World. Available now, from £110, toms.co.uk

Face to watch: Hannah Arterton

Prepare for a sister act as the younger sibling of Hollywood starlet Gemma arrives on the thespian scene – just out of Rada, she's set to make her professional debut alongside Tracey Ullmann in Stephen Poliakoff's new play My City.

Lexpionage: Sigh-on-the-wall, adj.

A genre of television programming in which subjects are lmed continuously while rendering viewers paralytic with ennui – see Five's reboot of Big Brother/most of the BBC3 schedules

Social networking: Match the tweet to the star

David Lynch, Stuart Baggs, Zooey Deschanel, Roseanne Barr

1. I kinda just moved from one chair to another all day.

2. Dear Twitter Friends, I'm going to make 2 gray-violet shapes for long arms this weekend. What are you all going to do? Have a great weekend.

3. this is the age of insanity and terrorism. G-d help us all! we could have peace so easily!

4. Reading the top tweets for "Dear Taylor Swift" has caused me to instantly vomit over my keyboard.

Answers at the bottom of the page

App watch #29: Biophilia

Ever the state-of-the-art songstress, Björk has decided to unveil her new material via this digital "cosmos". Songs can be added as they are released in coming weeks via individual sub-apps, which will incorporate interactive games, audiovisual displays and academic essays. Free to download, then £1.49 per sub-app

On the radar: Because some things are still worth getting excited about...

Art: Curtain Call

Go full circle with this new installation by designer/artist Ron Arad at London's Roundhouse. A ring of 5,600 silicon rods, it will act as a canvas for films, music and performance. 9-29 August, roundhouse.org.uk

Music: Girls

A ballad entitled "Vomit"? Such are the off-kilter ideas spewed up by this Californian psychedelic group, back with a glorious, gospel-flavoured freakout in advance of their second LP. ind.pn/qWYAcY

Food: Vintage Tea Party

Bring out the bone china for this book from vintage guru Angel Adoree, which features advice on holding a retro shindig alongside recipes for old-fashioned fancies including rose-petal sandwiches. £20, Mitchell Beazley

MATCH THE TWEET: 1. ZOOEY DESCHANEL; 2. DAVID LYNCH; 3. ROSEANNE BARR ; 4. STUART BAGGS