5.
...and Baby Spice totally approved of Nick Carter's ensemble:
6.
Ariana Grande geeked out over the planets...
7.
...and then had an out-of-this-world exchange with NASA:
8.
Reese Witherspoon appreciated this Legally Blonde meme:
9.
Camila Cabello geeked out over Taylor Swift's potential set list:
10.
Hailee Steinfeld revealed what's on her mind:
11.
Dax Shepard gave Kristen Bell permission to divorce him:
12.
Seth Rogen had an embarrassing mom moment:
13.
Anna Kendrick revealed her relatable texting habits:
14.
Mindy Kaling enjoyed a beautiful, tipsy night:
15.
And Miley Cyrus came up with a brilliant name for this trio: