He also served as a press officer to Labour leader Neil Kinnock during the 1987 general election.
In 1989 Williamson joined The Times as a political correspondent with a twice weekly column on the op-ed page.
He writes on pop and world music for a variety of publications and was a contributing editor to the magazines Uncut and Billboard.
He expressed his concern over Kent's logo rebrand in 2010, calling it "banal and meaningless".
[2] In 2011, Williamson and fellow member Graham Holland started a campaign for more open and accountable management of Kent County Cricket Club and for the club's first contested committee election since 2008.