Jennifer Lawrence Update: Celebrates Oscar Win By Dying Hair Black

[L-R: Jennifer Lawrence Sunday night; Jennifer Lawrence Monday]

Always full of surprises, the day after Jennifer Lawrence's big win, our Best Actress brought her Oscar party hangover to Rossano Ferretti HairSpa in Beverly Hills as a blonde and came out with a head of jet black hair. Oh, and yeah, that's her flipping the bird to the Oscar press room on Sunday night after the ceremony. Bless her.

To get caught up on all things Jennifer Lawrence from the last 48 hours, see:

Last Night's Parties: From The Governors Ball To Vanity Fair, The 2013 Oscar Night Edition

Best Dressed Guests: Top 15 Looks From The 2013 Oscars Red Carpet

Instagram Round Up: Behind The Scenes At The 2013 Oscar Parties

Best Dressed Guests: Oscars 2013 After Parties

[Jennifer Lawrence gives the bird to Oscars press room via, Jennifer Lawrence leaving salon yesterday via]