London, Nov 7 : F1 world champ Lewis Hamilton is planning to spend millions on houses across the world to be with his Pussycat Doll Nicole Sherzinger.

The racing driver is keen to spend time with the singer.

And the 23-year-old says that he is now ready to buy homes in America, Australia and Europe to live with his ladylove.

"I'm very happy and we're both very very happy with each other. I'm definitely sleeping with a big smile on my face," the Daily Star quoted him, as saying.

However, Hamilton has no plans to settle permanently elsewhere.

"I don't know what the future holds for me. I don't know if I will live in America or Europe or Australia," he added.

However, he dismissed engagement rumours after Sherzinger was spotted wearing a ring.

Speaking at the launch of his sponsor Vodafone's BlackBerry Storm phone in London, he said: "I'm very fortunate, not just to have success but I do have the most beautiful woman by my side. My life just gets better and better."

The couple has been dating since they met at last year's MTV Europe Music Awards in Germany.

ANI