There's less than a week to go before London has to make up its mind on who should be mayor for the next four years.
Many young voters will be having their say for the very first time.
Our poll earlier this week showed that 36 percent of 18 to 24 year olds are absolutely certain they will vote next Thursday, with just under half of 25 to 35 year olds saying they also intend to vote.
Two questions then: what can be done to get all young people to vote? And could their votes prove decisive?
Here's our Election Correspondent, Alex Forrest.