Today is the day!
To get her fans extra excited, the 19-year-old teased some of the goodies to Snapchat on Thursday. Take a look (below):
[Image via Instagram.]
Now this is MUCH more like it.
For Sunday night's awards, the beautiful redhead looked outstanding in a custom Calvin Klein Collection dress.
To compliment her blue ensemble, Jessica was dripping in sapphire and diamond jewelry from Harry Winston.
[Image via AP Images.]