Ariana Grande might have scored a couple Grammy nods, but we can guarantee people will still be talking about her even if she walks away empty-handed tonight. First of all, she and Big Sean are now RED CARPET OFFICIAL (hand holding and all). And then there's the fact that she stepped out looking more glam and mature than ever.

Ari looked like a veritable Greek goddess in her one-shouldered Atelier Versace dress and HIGH ponytail. The white gown could have been a little too austere, but the chain metal sheath and back cutouts edge the whole look out. And those cat eyes? MeOW.

It looks like the days of half-up hair and floral patterns (see: last year's cutesy look) are behind Ariana. If anything, her ensemble is more of a flashback to her first Grammys appearance in 2011—similar hair, similar Aphrodite tendencies.

Maybe she got a tad nostalgic in Versace's dressing rooms this year?

We assume we'll get at least one costume change from Ari before the night's over (have YOU ever tried to dance in a floor-length gown before?), so stay tuned for all the sartorial deets.