Vanessa Hudgens Gets Jiggly on Jimmy Fallon Show (watch!) 1Vanessa Hudgens got jiggly on Jimmy Fallon last night (Feb. 8) while singing a verse from rapper Tyga’s song “Rack City.” Of course, she was wearing a braless, halter-top dress that had Jimmy squirming in his chair.

Hudgens, 23, is making the rounds promoting “Journey 2: The Mysterious Island,” the 3D action-adventure sequel to 2008 film “Journey to the Center of the Earth.”

The former Disney High School Musical star seemed to be at the top of her game. She not only looked gorgeous in her plunging dress, she was engaging and charming during the interview.

Check out Vanessa’s photos; click to enlarge.

Vanessa Hudgens Gets Jiggly on Jimmy Fallon Show (watch!) 2Vanessa Hudgens Gets Jiggly on Jimmy Fallon Show (watch!) 3Vanessa Hudgens Gets Jiggly on Jimmy Fallon Show (watch!) 4

She reminisced about her high school musical days and how her view of them has changed over time.

“It’s so funny, though, because I look back at it, and I’m like it was such a crazy time, and for a while I was like, ah, it’s just this kid’s movie I got to do,” she said. “Now I look back on it and I’m like ‘That was awesome. That was so bad and fun. Now I just want to get up and sing and dance.”

The conversation turned to music, after Fallon asked her what she was listening to. Hudgens named a number of groups, like the Black Keys and Elbow. Jimmy spoofed that he was listening to Sade, and Vanessa countered with Rack City.

Jimmy didn’t know the song, so Vanessa sang a verse of the, shall we say, bouncy tune. Despite some blog reports that Hudgens flashed Fallon during the interview, her dressed looked firmly affixed to her breasts, likely with double sided tape.

Check out Vanessa’s stunning photos above, and a clip from her interview below.