What's next for the fourth plinth?

It's been home to a blue cockerel, a ship in a bottle, and now a giant 'thumbs-up', but what will be next to sit on Trafalgar Square's famous Fourth Plinth?

We'll get one step closer to finding out this morning, when a shortlist of commissions is announced.

You can view the proposals at the National Gallery.

David Shrigley's 'Really Good' currently sits on the Fourth Plinth Credit: Philip Toscano/PA Wire/PA Images