David Beckham's fabled 'golden balls' have just gone super-sized!

The sexy soccer star's bulge takes centre stage in his new ad for Emporio Armani underwear - which is currently on display on a huge, traffic-stopping mural in San Francisco.

Wearing nothing but Armani briefs, the buff England and L.A. Galaxy star shows off his generous package while working out on a Malibu beach.

The revealing shot - taken by fashion photographers Mert Alas & Marcus Piggott - was unveiled on a giant mural facing Macy's store in the heart of San Francisco yesterday.

Don't worry if you're not a San Franscisco local, you can catch Becks' bulge when similar photos hit billboards in New York, Los Angeles, Rome, London, Milan, Paris and Tokyo.

Check out the big unveiling - and the screams that accompanied it - below...