Leonardo DiCaprio filming martin scorsese jonah hill wave nyc We almost didn't recognize the sexy A-lister with his new, darker 'do!

Leonardo DiCaprio is hard at work filming his upcoming film The Wolf of Wall Street , and the normally shy actor was unusually candid on-set the other day, flashing a smile and waving to fans that were waiting to catch a glimpse of the Titanic star.

The flick, directed by Martin Scorsese and co-starring Jonah Hill and Matthew McConaughey, centers around a New York stockbroker who refuses to cooperate in a large securities fraud case involving corruption on Wall Street, the corporate banking world and mob infiltration.

Audiences get excited, because apparently we're going to see a new side - literally! - of the Hollywood heartthrob in the movie. The New York Daily News reports that the 37-year-old will take it all off for the cameras, and a source revealed "there will be some pretty illicit sex scenes coming up. It involves four guys and two girls." Yowzas!

We wonder how his Victoria's Secret model girlfriend Erin Heatherton feels about her boy toy showing his stuff on the big screen?