Vanessa Hudgens is ''really surprised'' at how trendy Sir Michael Caine is after he was singing Katy Perry songs on the set of their latest movie and advising her on technology trends.
The singer-and-actress was shocked to hear the 78-year-old star singing a Katy Perry song on the set of her latest movie 'Journey 2: The Mysterious Island' - which stars DWAYNE 'THE ROCK' JOHNSON and Josh Hutcherson - and she was surprised to hear him advising her on the latest technology trends.
She told You magazine: "When they told me about the cast and about the fact that we'd be filming in Hawaii, it was basically a no-brainer.
"Michael Caine was awesome. I was really impressed that he knew what was hip and trendy. He was singing Katy Perry's 'Firework' one day and then telling me about an iPad feature I had to get the next.
"The whole thing was just a great experience - I'd wake up to the sound of the ocean, play on the beach a little and then mosey on down to work. Who wouldn't say yes to that?"
The 23-year-old beauty - who previously starred alongside her then-boyfriend Zac Efron in 'High School Musical' - has started embracing her "inner child" and "having fun" with her acting roles rather than try to fit in with an older mindset.
She added: "I was always extremely passionate about acting, and when you love something that much, you want to do it all the time. But I've noticed a change In Me over the years.
"When I was younger, I played the adult more because I was acting with adults and wanted to fit in. Now I'm embracing my inner child and having fun."