Zanessa @ Palm Springs Film Festival

High School sweethearts Zac Efron and Vanessa Hudgens (in Mblem) make their first red carpet appearance together at the Palm Springs Film Festival on Saturday in California.

Zac, as usual, had all of his female fans’ panties in a bunch. According to The Desert Sun, five female friends and cousins wore white T-shirts spelling out the word Hairspray in hopes of seeing the teen hearthrob.

“I almost hope it rains, I love it when (Zac‘s) wet,” said Bekah Hoesterey, 16, of La Quinta.

There’s also some video footage of Vanessa braving the rain Friday night here.

20+ pictures inside of Zanessa @ 2008′s Palm Springs Film Festival…