The "American Idol" judges were seen arriving to work for "Hollywood Week" yesterday. See pics of Mariah Carey and Nicki Minaj glammed up inside...

Armed with a team of stylists, makeup artists and assistants, Mariah Carey pulled out all the stops for her walk to work yesterday.  While she donned an eye popping red dress, seemed like she was trying to prove a point as to who the biggest diva is on the set.

Mimi even got a touch-up before she strolled past the line of eager photographers.

In contrast, normally over-the-top rapper Nicki Minaj kept things simple with a black motorcycle jacket and dark leggings. 

Though Mariah clearly stole the show, Nicki's subdued outfit was a notch own from yesterday's bright yellow cake enhancing dress.

She's also gearing up to sell her new MAC Viva Glam lipstick in February.

Fans can catch the season 12 premiere of "American Idol" on Wednesday, January 16, and Thursday, January 17, 2013 at 8/7c on Fox.

BONUS:

Because we just can't get enough of "Dem Babies," Mariah recently tweeted an adorable picture of her 20-month-old son Moroccan relaxing in his pj's.  She said, 'Roc... what more can I say?'

We're sure Mimi and Nick have a lot in store for the twins this Christmas as they are well known to spoil the tots.