Topsy will be seen on a London taxi until the London Double Header returns to Twickenham for its tenth year on Saturday, 7 September. Chris Robshaw, Owen Farrell and Tom Varndell will also be taking to the streets of London and the surrounding area.
London Irish will take on Saracens and London Wasps will be aiming to avenge last year's defeat to Harlequins. With plenty of speed on show in all four teams, the fixture is likely to be a try fest.
Any supporters who spot the taxis featuring four of the most recognisable faces in Aviva Premiership Rugby will get the chance to celebrate the beginning of the season in style in a box at the London Double Header.
Anyone who tweets a photo of one of the taxis using #LDHTaxi will get the chance to win a box for 10 at the London Double Header in Twickenham with runners-up winning a pair of tickets and a signed shirt of their choice from Harlequins, London Irish, London Wasps or Saracens.
The deadline to tweet your photos to @premrugby is 5pm on Friday, 30 August.
For those not lucky enough to spot the London Double Header taxis, tickets are on sale from ticketmaster.co.uk. The London Double Header - two top class Aviva Premiership Rugby matches for the price of one ticket from £20 for adults and £10 for children.