Las Vegas is taking a big gamble investing in the U.K.

Las Vegas casino owners are investing nearly $4 billion in Britain now and are set to spend another $6 billion opening up to 20 giant casinos and creating 50,000 new jobs. It is the biggest gamble by Las Vegas casinos since Bugsy Siegel opened the Flamingo 50 years ago, reports the Sunday Times of London. “We’re taking a huge risk on Britain,” according to the Senior Vice President of the MGM Mirage Group.

About 100,000 Britons travel to Las Vegas each year. The casinos currently invest heavily in British entertainers with Elton John at Caesar’s Palace, Tom Jones at the MGM Grand, plus Sting, Rod Stewart and David Bowie are all set to be on the Strip later this year.

British law makers have promised a change in the laws regulating gambling casinos by the time the Queen gives her speech later this Spring. The MGM Mirage Group and Harrah’s, who together operate 40 large casinos in the U.S., are both investing heavily in the development of new casinos in the U.K. because their information shows that even though a large amount of gambling goes on through bookies and race tracks, fewer than 3% of Britons have been to a casino.