With April comes the proximity of June, which, yes, means we’re officially in wedding season.

So while discussing attire options for an upcoming betrothal this morning, a debate raged: Is it ok to wear white to somebody else’s wedding?

On the one hand, you can usually assume the bride will wear white, and showing up in her signature color is a little like showing up to somebody else’s birthday party in a tiara.

But consider this: Plenty of girls are no longer sticking to just white, so if you know the bride’s hitting the aisle in, say, blue, does it matter if you don the shade of innocence yourself? And what if your white dress is short anyway? It’s not like you’ll be mistaken for the girl wearing the veil.

So, an antiquated rule that’s sorely unfair to your stash of perfect little summer dresses that happen to be white? Or a move that shows little respect for your friend/relative/acquaintance and also bans you from any of the red wine?

Discuss!

—CARSON GRIFFITH

Well, at least the New York Public Library thinks you are.

Starting on the 1st of January, there’ll be an online auction (through the 31st) to benefit the 87 branches of the NYPL and their teen programs. And what will everyone bid on? Tiaras designed by the likes of Vera Wang, Tommy Hilfiger, Nicole Miller, Bobbi Brown, Lauren Conrad, and Austin Scarlett from Project Runway (among others), in honor of the Princess Diaries.

If you believe none of this, please visit the official site.

LC’s, which we knew we had to pull from the gallery for you, is at left.

Happy clicking.

The last time we donned a tiara, we were playing Pretty Pretty Princess.

That was a very long time ago.

But apparently, they’re the latest fashion forward accessory. Intern Jazzi, who always looks stylish but not trend obsessed, says she wears hers out any random night. Intern Brett says he knows “tons of girls who wear them.” And Blair Waldorf wore one, (even if it was a dream sequence), so the accessory’s naturally on Natalie’s radar.

Now, The Dean Harris for Target line features a thorny crown topped with beads that could transform a head of golden ringlets into a veritable fairy princess.

But there’s something about wearing a crown that will always make us think of Pretty, Pretty Princess and cheesy brides.

Do you wear tiaras out and about?

Good morning, Upper East Siders… and everyone else skipping work to read this.

Here’s what we spotted at the Chopard party last night, besides Elton John looking shiny:

Agyness Deyn and Jamie Burke, discussing an early call time this morning.

Could it be that Agyness has swapped out Lara Stone for the CK Jeans campaign?

If true, it marks the second time in a year that Ms. Deyn has replaced Kate Moss in a signature campaign (the first being Burberry).

And although we love Lara’s face and amazing body, let’s face it:

If anyone can make a pair of ripped, overpriced pants look like an essential tiara, it’s the Machester native…

Halloween seems to be huge among fashion folk, probably because it’s yet another excuse to dress up.

At Alison Sarofim’s famed Halloween party this weekend, our baby Chris Benz went as a matador and Fabiola Beracasa made her own outfit - she encrusted an orange couture gown with leaves and acorns to become, simply, “The Fall.” Meanwhile, Subversive Jewelry’s Justin Giunta donned plaid and grinned, “I’m a Fashion Bear.” We dug it.

Meanwhile, the Post has a poll today about which designer makes the best Halloween costume.

Our choices are Karl Lagerfeld, Richie Rich, John Galliano, and Donatella Versace. We think it would be most fun to dress up as Karl, but Donatella wins the survey hands down.

Maybe it’s because more women are playing along than men - the feature is on the Fashion page, which is statistically read by more females, and if you’ve got a chest, dressing up like Galliano gets a major nix (at least, we wouldn’t want to try it). But if you do dare to dress as Donatella, we recommend mixing your self-tanner with some baby oil, for that plastic-makes-perfect look.

And just in case you’re looking for a more low-maintenance option:

Tonight we had a Halloween dinner, and pulled on a pink dress, a tiara from the toy store, and we wore a roll of toilet paper as a bangle. When anyone asked what we were, we said, “Oh, we’re the Princess and the Pee.”

It went over really well, in that back-to-fifth-grade kind of way…

Following on the heels of the Dakota Fanning Marc Jacobs ad campaign in the US, there was a larger campaign shoot of the starlet with Juergen Teller in Paris’ Purple magazine.

Looking at the thirteen year old, our minds went first to Tanya D., who started modeling in Russia at eleven, and first met with American scouts at thirteen.

But then our British fashion crush Lula has a jewelry story that features a scantily-clad blonde toddler decked out in diamond tiaras, brooches, and necklaces from Garrard, Van Cleef & Arpels, Bulgari and De Beers.

We’re used to teenage models and all, and even Dakota, but is this going too far?

—ALISON

Vogue’s Ten Best Dressed List is finally up online. Among those anointed as this year’s Oscar royals are Reese Witherspoon (yes), Nicole Kidman (sure), Kirsten Dunst (really?), and Anna Scott, the wife of Vanity Fair’s Graydon Carter, in an old-school Carolina Herrera gown that almost demands a tiara.

Absent from the list is Jennifer Hudson, who was styled by Vogue’s own Andre Leon Talley… until halfway through the ceremony, when she changed into a Cavalli gown chosen by Jessica Pasteur and promptly won an Academy Award. Emily Blunt, who impersonated a Vogue staffer on film, is also not included.

Lily Allen’s appearance at Chanel last season may have mixed up her fans, the fashion press, and us (we’re both): Lily’s not starring Chanel’s new ad campaign; she’s starring in her own ad campaign for a future New Look collection!

WWD reported the story this morning: Lily will work with New Look designers on a capsule line of clothes; Ellen Von Unwerth just shot the ads; Karl Lagerfeld is not involved.

As for the actual clothes, we expect a lot of prom dresses, some tiaras, some filthy sneakers, and - please, please, please - gorgeously cheesy hoop earrings, painted gold and bent into the shape of hearts. Unlike Christopher Kane’s line for Top Shop, you can’t buy it online, so let this be a plea:

Opening Ceremony, please import some Lily for New Look to your store!