United Kingdom, Jan. 10 -- Dolly Parton "wishes she could be" at her upcoming 80th birthday celebration at the Grand Old Opry.

The 9 to 5 hitmaker - who has been out of the public eye dealing with "health challenges" for some time - will reach the milestone age on 19 January and in honour of her special day, the iconic Nashville venue will mark her birthday for the fourth year in a row with a special concert on 17 January.

But Dolly has confirmed she won't be there to see the likes of Lainey Wilson, Vince Gill, Rhonda Vincent, and Trannie Anderson pay tribute to her.

She said in a video message shared on the Grand Ole Opry's Instagram account: "I just wanted to say how much it means to me that you're all coming together again this year...