Jaden Smith has reached out to Shia LaBeouf, insisting he has a ''fellow insane'' friend in him.

The 15-year-old star tried to visit the 27-year-old Hollywood actor - who wore a brown paper bag over his head to the German premiere of his new film 'Nymphomaniac' earlier this month and has repeatedly insisted he is no longer famous - at his #IAMSORRY silent art installation in Los Angeles, and though they never got to meet, Jaden wants Shia to know he is ''seriously'' there to give him support.

Jaden - who is the son of actors Will Smith and Jada Pinkett Smith - wrote on Twitter: ''I Waited In Line Today On Beverly Blvd To See @thecampaignbook I Never Got See Him But I Had A Very Important Message To Deliver.

''I'm Here If You Need A Fellow Insane Person To Talk To. But I'm Seriously Here Not Like One Of Those I'm Here For You's That Everybody Says. (sic)''

Jaden - who only follows Shia on Twitter - added: ''It Was A Message That Only Could Be Understood Artist To Artist. @thecampaignbook I'm Here For You I Believe In What Your Doing (sic)''

Meanwhile,Shia's 'Nymphomaniac' co-star Felicity Gilbert is concerned his recent antics are ''dangerous'' because the public don't understand what he is doing.

She told The Metro newspaper: ''I think this is his own project. His own creation. But I think people don't necessarily sympathise with him that easily and so it is a dangerous thing to do.''