TV presenter Ant McPartlin has said he feels he has "let people down" ahead of reportedly entering rehab following a battle with depression, alcohol and substance abuse.
The star, who is one half of presenting duo Ant and Dec, said he wanted to speak out about his issues in order to help others.
He told The Sun on Sunday: "The first step is to admit to yourself you need help.
"I feel like I have let a lot of people down and for that I am truly sorry.
"I want to thank my wife, family and closest friends for helping me through this really difficult time.
"I've spoken out because I think it's important that people ask for help if they're going through a rough time and get the proper treatment to help their recovery."
The 41-year-old said to have checked into a rehabilitation facility, where he will remain for up to two months, according to the newspaper.
The paper also reported that McPartlin's problems stemmed from knee surgery two years ago.
He is said to have started taking prescription drugs to cope with the pain relating to an ongoing complication.
McPartlin is the long-time friend and professional partner of Declan Donnelly.
The two teamed up after starring in children's drama series Byker Grove together in the 1990s and have worked together ever since.
Their busy work schedule hosting programmes such as I'm A Celebrity ... Get Me Out Of Here! and Britain's Got Talent, are also reported to be an additional factor to McPartlin's battle with anxiety.
Donnelly thanks fans for support for "the big fella"
Donnelly thanked fans for their messages of support on Ant and Dec's official Twitter account:
Some well-known names have commended McPartlin for speaking out about his personal issues.
Lord Sugar wrote on Twitter: "Very brave Ant to go public. This is the first stage of the road to recovery."
Dame Kelly Holmes said: "Best wishes to Ant @antanddec You will come back stronger, your fans love you."
Ant and Dec have won the TV presenter award at the National Television Awards for 16 consecutive years.
Last year, the Geordie duo were awarded OBEs in the Queen's Birthday Honours for their services to broadcasting and entertainment.
McPartlin is married to his long-time partner Lisa Armstrong.