Last night's Billboard Music Awards were all about bold glamour. Some of the highlights: Dua Lipa's sleek bob and bold brows; Mila Kunis' adorable bangs and sparkly eyeshadow; and Alison Brie's cat eyes and pink lips.

Here are the hair and makeup close-ups:

Dua Lipa

I love Dua's sleek bob, straight brows and sheer purple eyeshadow, to match her dress. I'm even into the exaggerated cat eyes and spider lashes—I think they work because the rest of the makeup is quite modern (no contour or drawn-on eyebrows, for example). 

Mila Kunis

Don't you just love Mila's choppy bangs and wavy bob? I *think* the bangs may be clip-ins, but either way, I love this style on her SO much. I'm equally obsessed with her silver and charcoal eyeshadow, just up to the crease, with black waterlines, long lashes and natural lips. 

Alison Brie

Alison's rockiing Brigitte Bardot-esque long bangs, a high bun, '60s cat eyes and pink lipstick. This is my favourite look on her in a while—it's a lot softer than what she wore to the SAG Awards!

Camila Cabello

Camila kept it simple with wavy, face-framing bangs in a middle part (her hair is in a long bubble ponytail at the back). The makeup is nothing groundbreaking, but I still like the smoky eyes and subtle peach lips.

Demi Lovato

Demi's off-the-face wet hair is so glam with her oversized earrings and leopard dress. However, I always feel her makeup is too contrived, from the angular brows to the false lashes to the shading under her lower lip. Her 2016 Grammys look is still my favourite; it was so much fresher. 

Ashlee Simpson

Ashlee's skin looks flawless, and I like this luminous nude lip colour a lot. But the false lashes are way too much, and her brow pencil doesn't match. Also, her blonde is so light and solid... I thin it works better at a shorter length (I miss that cut!).

Jennifer Lopez

I'm still enjoying Jennifer's new lob, and the highlights. While she wore it sleek at the Met Gala, this textured, voluminous look is great, too. I don't mind the purple eyeshadow all the way around her eyes. But I'm not a fan of the goopy gloss, obvious lip liner, heavy and unblended contour and over-the-top lashes. It's too much!

Halsey

I like Halsey's bright pink eyeshadow... just not the execution! With a colour like this, it's best to go clean everywhere else—so I don't like the false lashes, heavy contour, unblended lip liner or pink highlighter at the inner corners of her eyes. Her black hair colour is quite harsh, and her brows don't match. I preferred her style when she had short hair!

Jenna Dewan

Jenna's straight bob is adorable—it's even shorter than the last time we saw it, at the Oscars. The yellow eyeshadow is also fun. But wow, I wish she'd lighten up the rest of her makeup! Less eyeshadow, softer brows, and shorter lashes are needed.

Christina Aguilera

Christina had a makeunder! Compare and contrast this look with her makeup in 2015 (which was one of the heaviest applications I've EVER seen). Here, I love the soft lashes, subtle contouring and clean ballerina bun. But she's doing the unblended bottom lip liner thing, and her brow pencil is too red. I would love to see her with a more natural shade of blonde.

Christina is wearing: False lashes • Brow pomade in Dark Brown • Lip liner in OG Lolita • Lipstick in Ophelia

Who had your favourite (and least favourite) beauty look on this red carpet?