Next week sees the return of one of London's established music festivals, the Greenwich Summer Sessions. Staged in the idyllic and historical grounds of the Royal Naval College just outside the centre of Greenwich, the week-long festival will feature a who's who of top headlining names such as The Divine Comedy, Mark Ronson, Status Quo, Squeeze and The Pogues.

However, on the final night, 31st July, by way of a finale to the festival, Chris Difford (Squeeze) will be curating a one-off exclusive evening called "Songs In The Key Of London", starring top British singers and songwriters all celebrating the city of London, performing such classics as Ralph McTell's "Streets Of London", The Clash's "London's Calling" and The Kinks' "Waterloo Sunset".

The line-up for the show includes Ali Campbell (UB40), who last year released an album of his own take on British pop-classics, Gary Kemp (Spandau Ballet), Boo Hewerdine (The Bible), Mark Nevin (Fairground Attraction), nu-folksters Chris Wood and Kathryn Williams, with a special appearance from James Brown sax henchman, Pee Wee Ellis. Just added to the line-up today are jazz singer Clare Teal, Nerina Pallot, Shlomo and the Vocal Orchestra and Difford's songwriting mucker in Squeeze, Glenn Tilbrook (a local boy, no less).

This promises to be a very special never-to-be-repeated show - and we have access to a fantastic never-to-be-repeated ticket offer!!!

For a VERY limited period, you can take advantage of a 2-for-1 offer on full-price tickets (normally £27.50 each), which translates as 'buy one get one free' or £13.75 per person. Click on the Book This Offer button, below and ensure you select the '2-4-1 Ticket' option - you can only order these in multiples of two and when they're gone...they're gone!!!

NB. All other shows at the Greenwich Summer Sessions are still available, priced from £27.50 to £35 (depending on which show you book), but NOT part of the above offer. Additionally, Mark Ronson has recently announced more special guest appearances for his show on Wednesday, including Miike Snow's Andrew Wyatt, The View's Kyle Falconer and Plastic Little's Kurt Hunte.

Also note that for Chris' 31st July gig, under 16s go free as long as they are accompanied by a paying adult.