Miley Cyrus advised Justin Bieber to enjoy the moment.
The 20-year-old star says it's easy for young stars like herself and the 'Baby' singer to forget how lucky they are to live privileged lives because they are constantly connected to social media, and told him to stop taking pictures and soak in the premiere of his 3D documentary movie, 'Never Say Never'.
She explained: ''I noticed he was taking all these photos of people and doing a lot of s**t, and I just grabbed him and said, 'Just take a snapshot in your brain of this moment so you don't forget.'
''I don't remember my 'Hannah Montana' movie premiere and my 3D movie trumped everyone's at the box office. I don't remember being there. All I remember from that night is that I stopped and got a strawberry milkshake beforehand. That's all. It's crazy. You think you're in the present but you're not.''
The 'Party in the USA' singer has learned hard lessons about social networking sites like Twitter and Facebook following vicious jibes being directed towards her, and Miley now even monitors her younger sister Noah's Twitter usage.
She told Elle magazine: ''She says, 'I'm talking to my friend', and I'm like, 'Are you sure that's even your friend?' There are so many fake Twitter accounts. I was following a fake of my mum for two months.''