Quick change fashion artist

As a Hollywood star you have to be fashionable every time you came up on the shot. More looks of design is more publicity for their. Wondering how many designer clothes are they have in there closet.

Beyonce at last night's 52nd Annual Grammys, the singer took home a record-breaking six Grammys, including Song of the Year for “Single Ladies (Put a Ring On It)," and almost had as many dress changes to go along with all those wins:

Bey walked the red carpet in a futuristic, molded Stephane Rolland gown and enormous earrings, which are sure to kick off a big jewelry trend for ears in the next months.

She followed that lean golden-girl look with a darker, leather, patchwork Atelier Versace mini, and then a final change into a Swarovski crystal-encrusted Armani Privé and another pair of supersized earrings.

Singer Rihanna traded a frothy Isaac Mizrahi skirt and a bold-shoulder Alexandre Vauthier jacket for an unusual cat costume to promote her "Rated R" album during her second press event on the same day.

One would think that after being so "overexposed" in that infamous green Versace "dress" at the 2000 Grammys that Jennifer Lopez would pick a different designer for the annual event.

But the triple-threat star chose Versace again twice in one night at the most recent Grammys.

Ciara is used to hearing applause, but photographers booed her for being 40 minutes late to the Givenchy show during Paris' Couture Fashion Week on January 26.

The singer made a quick recovery after a quick-change from her leather mini skirt into Givenchy's Fall 2009 silver harem pants (Why platinum adult diapers? we have no clue) to make amends to the designer at the show's after-party.

Thank goodness designer Riccardo Tisci is such a gracious host and the singer did not end up with one of the black eyes his models sported on the runway earlier that day.

Both Jennifer Lopez and Cameron Diaz slipped out of their fierce Oscar fashions and into something more comfortable (or at least manageable) before hitting up the after parties.

J.Lo, who rocked a sculpted Armani Prive gown pre-awards show, switched things up with a black cutout gown designed by Gucci, while Cameron traded in her Oscar de la Renta gown for an equally shimmery sheath from the Victoria Beckham collection.

While I welcomed the trade in J.Lo's case, I don't think Cameron's demure after-party pick was a good fit for her bubbly nature.