By Fay Strang
Published: 08:06 EST, 24 April 2014 | Updated: 10:57 EST, 24 April 2014
He rose to fame playing Troy Bolton in musical comedy High School Musical.
And it seems Zac Efron has still maintained his youthful fan base who were out in force on Thursday when he arrived at BBC Radio 1 in London.
The 26-year-old, who was appearing on Nick Grimshaw's breakfast show, looked delighted by the reception and flashed the peace sign as he made his way in.
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Zac is back! Mr Efron stopped by BBC Radio 1 for a chat with Nick Grimshaw on Thursday in London
He's still got it: The actor was met by lots of fans who were desperate to get a picture of him or an autograph
The actor, who is promoting his latest film Bad Neighbours, looked every inch the Hollywood movie star wearing a pair of tight black jeans, jacket and shades.
Showing his respect for his waiting fans he stopped to sign autographs and of course take a few selfies.
Talking about his fans who had waited from 3am in the morning, he told Nick: 'It's very sweet of everybody though – I do want to say thanks to my fans out here. It's good to be back.
And when asked about how fans differ, he said: 'I was thinking about this yesterday. I mean essentially it's the same thing, like I'm starting to recognise the same people –watch them grow up, get older.
Happy to be here: The actor couldn't have looked happier as he was met by delighted fans
Like a rock star: The actor wore black jeans with a jacket and dark sunglasses
Doing his best: Zac seemed keen to sign as many pictures as he could for his waiting fans
Rock and roll: Zac did his best impression of Nick Grimshaw while on the show
'You know when I started coming out here I was probably about 19 and every single time I got on a flight I was wondering if they would still be there. On the way here I looked out of the window and saw a lot of familiar faces. It makes me feel great every time I come. I feel so blessed about it all – it's pretty rad.'
Zac also opened up about working with co-star Seth Rogan, who co-produced the film, he said: 'I have always appreciated Seth's sense of humour, because it's so honest, it's really self-deprecating, and I've identified with it since I was super young. He's so good. He makes anything funny.
'He does [make me funnier], he passes the Seth energy on. He makes everybody funny.'
Zac continued: 'Our relationship never changes, I wish Seth could produce every film I'm in, he kind of just takes the lead he is always setting the pace and the tone for everybody.
'He helped the director, Nicholas Stoller, that's what Seth is able to do, ground everything. He is a great idea guy, and he's great to improvise with.'
Strike a pose: Zac seemed delighted to see Nick and posed up for pictures with him
Hanging out: The duo posed up in the radio studios together
Zac was also asked whether it was fun filming the big party scenes, to which replied: 'Sure there are moments. This character that I am playing is so intense man, I don't profess to being a method actor by any means but I was in it. I was pretty nuts , so we took it really seriously.
'Those party scenes might look fun but Seth kept us in line man. As much as they were party scenes, we were there to work. We really had a lot to accomplish in one of the craziest environments you can ever try and film in. No one should film a movie where we were.'
Rose Byrne and Dave Franco also star in the film which tells the story of Mac and Kelly Radner, a couple who move into a new neighbourhood to raise their child.
High five: Following the interview Zac looked in good spirits
Opening up: Zac chatted about his new film Bad Neighbors on the show
They quickly find themselves living next to a college frat house, and bad blood quickly boils between the neighbours after the Radner's call the cops complaining about the chaos and noise.
The fraternity, led by Zac Efron's character, start 'really f****** with us,' Rogen said of the plot, while Byrne explains 'it just enters into this war.'
Meanwhile Zac's arrival in the UK to promote the movie, comes amid reports that he is dating Halston Sage, 20, after meeting on set of the movie, and the pretty blonde has apparently already helped him through a tough time.
A source told E! News: 'They are definitely an item.
'They were seeing each other a bit during filming of their movie together and ever since he went to rehab they got a lot closer.'
Bad Neighbours will be released in the UK on May 8.
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