Oscars 2015 Style: So hot, or so not?

JLo's done it again. The singer's dress with a plunging neckline hit all the right notes. (AP)

Anna Kendrick shined on the red carpet in a salmon-colored gown and sleek updo. (AP)

Patricia Arquette's black and white taffeta dress made the "Boyhood" star look much older than her 46-years. (AP)

Gina Rodriguez of "Jane the Virgin" looked elegant in a blue sleeveless dress and minimal makeup. (AP)

America Ferrera looked red carpet-ready in a seafoam green gown and old-style Hollywood hairdo. (AP)

It looks like a firework exploded over Jamie Chung's dress choice for the 2015 Oscars. (AP)

Faith Hill debuted a new pixie cut at the 2015 Oscars and we love it. The country super star's husband looked equally handsome in his suit but Hill stole the show with her elegant white gown. (AP)

Karolina Kurkova's white dress hugged her curves in all the right places. (AP)

Margot Robbie looked like she was going to a funeral, not the Oscars. (AP)

Carmen Ejogo of "Selma" looked effortlessly glamorous on the red carpet. (AP)

Rosamund Pike's red-hot dress reminds us of Jessica Rabbit in a good way. (AP)

Naomi Watts' pick for the Oscars was not a good one. Is that a bandeau top under her metallic dress? (AP)

The new mom looked radiant in her nude dress. Can you believe she gave birth to twins in November? (AP)

Marion Cotillard's simple look failed to impress. (AP)

The "American Sniper" star's look had too much going on. (AP)

Lupita Nyong'o never ceases to impress with her red carpet style and this white gown was no exception. (AP)

Laura Dern looked like she was preparing for battle not attending the Oscars. Her metallic gown looked like armor but did still flatter her figure. (AP)

The mom and daughter duo both picked the right look for the Oscars. Griffith couldn't help but show how proud she was of her "50 Shades of Grey" star daughter. (AP)

Ansel Elgort's blue suit stood out among the other men's fashion choices at the Oscars. (AP)

Felicity Jones made a statement in her flowy silver gown with a beaded corset top. (AP)

Chrissy Teigen, left, and husband John Legend looked equally dashing. (AP)

We wish the Best Actress nominee picked a dress with more of a punch. This white number failed to impress. (AP)

The only redeeming thing about Blanchett's look is her stunning turquoise necklace. (AP)

The singer's navy blue gown had too much fabric and not enough flare. (AP)

Washington's choice for the Oscars made the "Scandal" star look stiff and not like she was ready for Hollywood's big night. The leaf embroidery on her top also did not help this drab look. (AP)

The "How to Get Away With Murder" star made a statement with her off-the-shoulder gown. (AP)

Solange's orange outfit was way too much. (AP)

Can you spell flawless? Reese Witherspoon stole the show in her sleek white and black dress. (AP)

While the cut of Scarlett Johansson's dress was flattering, there was too much green and too much necklate going on in this look. (AP)

Jennifer Hudson was a vision in yellow. (AP)

Anna Faris channeled Cinderalla in a sequined number that looked straight out of a fairytale. (AP)

Gwyneth Paltrow needs to consciously uncouple from this look and her stylist ASAP! (AP)

If Keira Knightley was trying to go for a tree fairy look she succeeded. (AP)

Emma Stone's look did not make us green with envy. (AP)

Brangie who? Justin and Jennier both looked dapper at the Oscars. (AP)

Channing Tatum is one lucky man! His wife Jenna Dewan Tatum's white hot look sparkled on the carpet. (AP)

While Chastain's hair and makeup were flawless, her blue gown was a bit of a mess. (AP)

Oprah Winfrey arrived in style at the 2015 Oscars. (AP)

Unless Lady Gaga is headed to wash some dishes after the Oscars, we're not sure what's up with those red gloves. (AP)