The 39-year-old actor, who is set to celebrate the milestone birthday in November, said he does not find the thought of being considered middle-aged daunting, reported Contactmusic.
"I suppose 40 represents something different, but I've been thinking about 40 for so long that I'm prepared for it. It seems like the age barometer where you're still considered youthful is getting higher and higher. I'm going to hold on to that ideal as long as I can," he said.
The actor's party guests may even see him bust a few dance moves as DiCaprio reveals he used to be an award-winning breakdancer.