Nicole Scherzinger's boyfriend teases possible marriage proposal

Formula 1 race car driver Lewis Hamilton might have let the cat out of the bag during an interview with The Sun this week, admitting that he's on the cusp of proposing to his girlfriend, Pussycat Doll-turned-solo artist Nicole Scherzinger.

“We’ve been together for five years, which is quite a milestone really," Hamilton said. "But hopefully in the near future. Maybe before we get to six years.”

Scherzinger, 34, and Hamilton, 28, have already been through some tough times. According to US Weekly, Hamilton helped his girlfriend overcome bulimia, as revealed in a 2012 episode of "Behind the Music."