Katy Perry Whirls, Tate Film Show, Frank Stella: London Weekend

Katy Perrys worldwide tour returns to the U.K. this weekend for her biggest shows in London, featuring dancing gingerbread men, rah-rah skirts, giant lollipops and constant jokes between the pop hits.

Perry, the wife of comedian Russell Brand, will be at the O2 Friday and Saturday to reel through catchy, suggestive songs such as I Kissed a Girl and Peacock.

O2, Peninsula Sq., SE10 0DX. Information: +44-20-8463-2000, www.theo2.co.uk, http://www.katyperry.com/

Saturday

The Frieze art fair -- Europes biggest commercial showcase for living artists -- runs through the weekend, testing collectors nerve at a time when world markets are taking a drubbing.

Some $350 million worth of art is on sale at the fair in Regents Park. Dont miss the 500,000 euro ($690,000) yacht that will cost you 125,000 euros more if you buy it at Frieze: Like Marcel Duchamps urinal, it will become a signed readymade by artist ! Christia n Jankowski, renamed Speedboat Christian with a signed certificate.

Hix Restaurant and Champagne Bar is the place to eat at Frieze. Chef Mark Hix is friends with many British artists, and his regular spot on the fairs grounds -- staffed by a team from his London venues -- is a celebrity hangout. Information: bit.ly/9zB1X6 or +44-77-0789-3217.

London galleries are rolling out top talent during Frieze week. Haunch of Venison has a career mini-survey of Frank Stella. Information: www.haunchofvenison.com.

Across the river in Bermondsey -- and worth the trek -- is White Cubes giant new space, in a handsomely redesigned former data-storage warehouse. The inaugural show, inspired by natural sculptures (scholars rocks) owned by Damien Hirst, includes a Hirst pill cabinet. Information: www.whitecube.com.

Saturday Night

A young Protestant girl named Hannah is soon to be wedded to a rich English peer. Then she proclaims shes hearing voices.

Sound like a horror movie? Its The Veil, a spooky new production at the National Theatre. Hannah is recruited as a medium by an ex-priest. Later, gunshots are heard offstage.

The Veil gets help from a fun cast and a beautiful period-living-room set.

Information: www.nationaltheatre.org.uk or +44-20-7452-3000.

Sunday

Every year, an artist is asked to fill Tate Moderns monumental Turbine Hall with a tailor-made work. Responses have included a crack in the concrete and a black hole.

Now, British artist Tacita Dean has come up with FILM, a looping, 11-minute projection that pays tribute to the dying art of pre-digital moviemaking. Beamed on a screen 13 meters (42 feet) tall, it was shot vertically by tilting a Cinemascope lens.

FILM is a poetic piece to ponder, though it would be better served in a smaller space. Information: www.tate.org.uk/modern or +44-20-7887-8888.

Wright Brothers Oyster & Porter House, in Borough Market, is a short walk from Tate Modern. Its an informal place for first-class seafo! od, and supplies some of London smartest restaurants. Theres a selection of six types of oyster, plus options such as New Orleans -- deep-fried, with tartar sauce. Information: bit.ly/qehbhG or +44-20-7403-9554.