Take That fans are being warned not to become victims of online fraud in the rush to snap up tickets for the group's forthcoming tour.
The band, newly reunited with fifth member Robbie Williams, only announced details of the long-awaited tour on Tuesday but officers from the Met's Economic and Specialist Crime Command have already found several bogus websites claiming to be offering tickets.
Typical scams see fans pay for tickets which never arrive or hand over personal details which can be used in identity theft.
Detective Inspector Sean Crotty said: "There are huge numbers of Take That fans who will be desperate to get hold of tickets for these concerts. However, buying tickets from unofficial websites or agencies could result in them losing money, having their credit cards details compromised and ultimately losing out on the opportunity to see the band."
Take That promised a "feast for the imagination" with their first tour as a complete group in 16 years.
The summer stadium tour around the UK includes four nights at Wembley Stadium after it kicks off next May.
Gary Barlow, Robbie Williams, Mark Owen, Jason Orange and Howard Donald confirmed the tour, Progress Live 2011, at a press conference in London.
The last time the five-piece performed together was in 1995.
This 14-date UK tour will end with six dates in Europe and feature Take That's biggest hits from the last two decades.
The tickets go on sale at 9am on Friday and the official ticket agencies can be found at: www.gigsandtours.com/gat/ticketagencies.html.