Rush hour commuters are being asked not to get on the Northern Line between Tooting Bec and Clapham North - because TfL say it's just too busy.
The pilot project, which starts on Monday, will see TfL offering advice on alternative routes and asking commuters to walk or cycle instead of boarding trains on the line between 0800 and 0845 on weekday mornings.
The scheme follows similar tactics adopted during the Olympics to reduce overcrowding.
More top news
The 2014 ceremony will take place at Wembley Arena on October 22, returning to the city where the awards started in 1996.
The warm weather means they seem to be everywhere. If that sends a shiver down your spine, here are some to tips to control them.