Celebrities Smoking Electronic Cigarettes: Leo DiCaprio, Katherine Heigl, JWoww Puff Away

Don Draper 2.0? Perhaps.

Celebrities sure are game to hop on the bandwagon when a new trend hits town -- even when it comes to giving their bad habits a makeover.

Electronic cigarettes, or e-cigarettes, are the newest vessel to help wean smokers off of the stick. Tech-savvy stars Dennis Quaid, Katherine Heigl, Leonardo DiCaprio and Kevin Connolly all updated their habits for the digital age with a SmokeStik, while Trace Cyrus puffs away on an electronic South Beach Smoke.

Check out these celebrities who've ditched the tar for these en vogue vapor sticks.

Check out these celebrities who puff away on the real thing: