Lewis Hamilton was interrogated by the Pussycat Dolls before he could date lead singer Nicole Scherzinger. The sexy girl group wanted to make sure the 24-year-old Formula One racing driver was a "nice guy" and not "a playboy". Melody Thornton, 24, said: "When we found out Lewis was a racing driver we were like, 'Hold on a minute, he better not be a playboy.' "So we asked him all sorts. What were his intentions, if he was a nice guy, did he know how to treat her right, did he bring her flowers and pull out chairs on dates? "We didn't mess about and gave him a tough time as we do with all new boyfriends. We are very protective of each other - especially when a new guy comes into the fold." Lewis charmed the girls, by impressing them with his English accent and being the perfect gentleman. Kimberly Wyatt, 26, told Britain's The Daily Mirror newspaper: "Lewis is so quiet and well mannered and he makes Nicole happy. We love the fa...