Katy Perry & Rita Ora: Lacoste L!ve Pool Party at Coachella!

Katy Perry rocks a bikini top while attending the Lacoste L!ve Desert Pool Party in celebration of the 2013 Coachella Music Festival on Saturday (April 13) in Thermal, Calif.

The 28-year-old singer was joined at the event by Rita Ora and Alexa Chung, who spun tunes in the DJ booth at the party.

The night before, Katy joined her pals Kristen Stewart and Robert Pattinson at the festival to listen to some music.

Also pictured: Rita wearing a different outfit while checking out the music scene that evening. Alexa was seen cooling down with her Fiji straw and water!

FYI: Katy is wearing a top and skirt by Dolce&Gabbana.

20+ pictures inside of Katy Perry and Rita Ora at the desert pool party…