Trying to keep this somewhat achievable...
Jalen Ngonda
Air
Hamish Hawk
Cast
CMAT (smashed headlining Deer Shed)
Emiliana Torrini
Manu Chao
Thee Sacred Souls
Richard Dawson
Bernard Butler (with David McAlmont)
Beak (epic on this tour - would be good to have a Glastonbury farewell)
John Grant
Bodega
Divorce
The Orielles
Anna Calvi
It will be interesting to see who the other 2 headliners are. A lot of people who live locally only do 1 day of Victorious. When Mumford headlined the increase in numbers on that day was noticeable.
It may well turn out the same with KOL
(And whilst we are mentioning headliners / potential headliners playing smaller Portsmouth venues, Mumford once played The Cellars pub in Southsea (now RIP) and Pulp supported St Etienne on the pier.