Our weekly roundup of what we're seeing sizzle and fizzle on the red carpet.

WireImage; Getty; WireImage Inset: FilmMagic

In our weekly round-up of what we’re seeing sizzle (and fizzle) on the red carpet, we noticed stars matching their lip color to their ensembles, cleavage as an accessory — and one standout mani amid a bunch of nude nails. Consider this your fashion forecast.

Up: Décolletage as an accessory. These stars had no shame in their cleavage games. As if Gabrielle Union’s Marc Bouwer mini didn’t make enough of a statement with its beaded detailing, the plunging neckline sure got our attention. Vanessa Hudgens tried her hand at a high-fashion Jenny Packham jumpsuit with a daring front, and nabbed a 71 percent approval rating! Also braving the trend: Kate Moss in Prada, Malin Akerman in J. Mendel and Lake Bell in Dolce & Gabbana.

Up: Coordinating pouts and outfits. Summer is a perfect time to experiment with bold lip color — and this week, stars doubled down by matching their shades to their equally standout outfits. Selena Gomez leads the pack with her crimson pout, which perfectly compliments her red Dolce & Gabbana dress. Dita Von Teese paired her signature red shade with a rose-print gown. In the accessories department, Zendaya Coleman matched her coral lip hue to her pumps, and Miranda Kerr had a three-way match-off between her lips, tote and studded sandals.

Down: Crazy Nail Art. Earlier in the summer, over-the-top manis were everywhere. But not this week. Bare beds, neutral colors and opaque paint jobs were most popular. In that mix, Hailee Steinfeld’s Comic-Con themed style definitely made a statement. And we like the look for the 16-year-old actress, who clearly loves to experiment with bold prints and patterns. But we have a feeling crazy designs are on the decline … for the moment, anwyway.

For more on which trends to follow, check out our thoughts on bejeweled ensembles and draped dresses.

–Brittany Talarico