Singer Miley Cyrus performs "We Can't Stop" during the 2013 MTV Video Music Awards in New York. Picture: Reuters

Miley Cyrus may have given up smoking marijuana but she expects to go back to her habit eventually.

The 25-year-old singer - who is engaged to Liam Hemsworth - is currently abstaining from the drug because she is "very focused" on her work, but she's expecting to pick her habit back up at some point.

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Asked if she's currently smoking weed, she said: "I want to be, but no. I am very focused on what I'm working on right now.

"[Weed is] the most magical, amazing thing. [It's] my first and true love.

"It's just not for me at this time in my life. But I'm sure there will be a day that I will happily indulge."

Though the 'Malibu' hitmaker likes to snack when she's "stoned", she won't be indulging in a special packet of peanuts which she's held on to from a flight 15 years ago.

She told talk show host Jimmy Kimmel: "They mean something to me! They represent the beginning of this life for me because I was on my way to LA for the first time to audition for 'Hannah Montana'. 

"My dad was there, my dad was in first [class] and I was in coach and he said he'd throw me a hot peanut from the classy section. And then I said, 'I already have my own.'

"So I've just kept them with me forever. No matter how stoned, I don't snack!"

The peanuts aren't the only memento from her past that Miley's held on to as she admitted her "hoarding" drives Liam, 28, crazy.

She said: I would say that I'm a clean person, but I'm also a bit of a hoarder - he calls it hoarding, I call it collecting.

"That thin line that divides hoarding and collecting is keeping things in the package, so having things in the boxes."

The 'Voice' star recently shared a clip of Liam scaring her at home and she admitted the 'Hunger Games' actor has a bad habit of sneaking up on her.

She said: "I know that it's May and I was putting our Christmas decorations away finally.

"I was already in this really creepy basement and I was coming up to say, 'Oh my god, that basement is so scary.' And then he jumped out at the worst time...

"I just don't know why I haven't caught on to this at all. I just don't know he's around every corner. He's around a lot of corners."

But Miley hasn't been so successful at returning the prank.

She explained: "I'm obviously loud and so I'm not very good at scaring people."