'60s model Twiggy (left), Jennifer Saunders and Joanna Lumley of "Ab Fab" fame (right). Photos courtesy of Marks & Spencer

Get ready for this, sweetie!

The Marks & Spencer Christmas 2009 ads have landed, and they're, well, absolutely fabulous. Literally.

The British department store has recruited beloved "Ab Fab" alums Jennifer Saunders and Joanna Lumley for its annual holiday campaign, which also features more "mature" stars amidst accusations of ageism against British TV, the Daily Mail reports.

Compared to last year's campaign, which featured 30-something boy band Take That, this year's ads celebrate an AARP-worthy roster of stars like 60-year-old Twiggy (an M&S regular), along with 52-year-old actor Stephen Fry and 65-year-old TV personality John Sergeant.

The paper reports that actors James Nesbitt, Philip Glenister and Marks & Spencer models Myleene Klass and Noemie Lenoir will also appear in the ads, along with, er, Wallace and Gromit. (Hey, why not?)

Although our dream ad would have the "Ab Fab" gals lining up for more Botox injections and trying to seduce the Jonas Brothers, Marks & Spencer is going the safer route, albeit with a cheeky twist.

Asked to name their favorite ingredient for the perfect holiday, Lumley and Saunders reportedly reply, "Stuffing... your face, sweetie."

Meanwhile, original-recipe supermodel Twiggy shows she hasn't lost her modeling mojo, posing for the camera in a stylish, hot pink coat while walking a dog.

Wow -- models who aren't just out of braces and training bras? Talk about a Christmas miracle!

See what Barneys New York has up its sleeves for the holiday season.