Long-term youth unemployment has risen by 447% in Lincolnshire, according to The Prince's Trust.
A new paper by the charity shows the number of young people claiming jobseeker's allowance for six months or more is four-times worse in the county now, than in 2008.
The study is based on figures from the Office of National Statistics and shows that 1,750 under-24s had been claiming the benefit for six months or more in August this year, compared to 320 in 2008.
The Prince's Trust is a charity that helps 13 to 30 year-olds who are unemployed and those struggling at school and at risk of exclusion.
In response to the steep rise in long-term joblessness, ambassadors from the charity will take part in a live-streamed Youth Forum.
Ambassadors, Alesha Dixon, Mark Ronson, Brooke Kinsella and Jamal Edwards will be joined by young people who are turning their lives around with the help of the trust, in the live event called Against the Odds.
Against the Odds can be viewed from 2pm today via The Prince's Trust Facebook page.
A Q&A with experts from the charity will also take place on Twitter.