Katy Perry & Teresa Palmer: Lacoste L!ve Pool Party!

Katy Perry shows off her new purple hair while attending the first day of Lacoste L!ve/HTC’s desert pool party in celebration of the 2012 Coachella Music Festival on Saturday (April 14) in Thermal, Calif.

“Today’s lewk is sponsored by Courtney Love, virgin suicides & fern gully #nymph” the 27-year-old singer tweeted.

PHOTOS: Check out the latest pics of Katy Perry

Also attending the party: Teresa Palmer, who met up with Lea Michele during the afternoon of fun.

“So SO much fun today @lacostelive and @htc party highlight of #coachella so far!!” Teresa tweeted.