The 19-year-old actress just returned from the 2015 Coachella Music Festival and met up with BFF Joel Courtney for the show.
Joel will star in the upcoming CW show, The Messengers, premiering THIS Friday!
Make sure to watch the 2015 MTV Movie Awards, hosted by Amy Schumer, TONIGHT at 8pm ET/PT on MTV!
FYI: Kat is wearing a Guess dress with BCBGeneration shoes.
10+ pics inside…