According to the advanced field of theoretical physics known as "6 Degrees of Kevin Bacon," you can connect anyone to actor Kevin Bacon in six degrees of separation or fewer. In honor of Bacon's 58th birthday, we decided to put the theorem to the test by seeing how many degrees it took to connect him with our faces of cannabis - celebrities that Americans associate most with marijuana based on inaugural Civilized Cannabis Culture Poll.

If you can find closer connections than the ones listed below, let us know. (Full disclosure: we are only connecting our celebs with Bacon through film appearances, so appearances on talk shows, fundraisers or other public engagements don't count.)

Honorable mention, 0 Degrees of Separation

You can only score a perfect zero in "6 Degrees of Kevin Bacon" if you are Kevin Bacon. And while he didn't make our list of prominent cannabis celebrities, he has had a puff now and then. The funniest session happened when his wife - actor Kyra Sedgwick - wanted to smoke a joint to prepare for a cannabis-themed episode of The Closer (2005-2012).

According to hollywood.com, Sedgwick wrote down all the ideas that they came up with while high. The best one has to be Bacon's musing on America's favorite hotdog dressing: "Let's face it, ketchup is just dessert masquerading as a condiment," he said.

Sadly, the condiment rant didn't make the episode.

Willie Nelson, 2 Degrees of Separation

Willie Nelson was an honorable mention on our list of cannabis celebrities. He also played professional fisherman Billy "Catch" Pooler in the comedy Gone Fishin' (1997), whose cast also included Maury Chaykin, who played mobster Sally Sanmarco in the crime drama Where the Truth Lies (2005), starring Kevin Bacon.

Bacon also introduced Nelson along with Kris Kristofferson and Chris Stapleton at a concert celebrating John Lennon.

Seth Rogen, 2 Degrees of Separation

Seth Rogen placed 4th on our list of cannabis celebs because of his performances in stoner comedies like Neighbors 2: Sorority Rising (2016), which co-starred Rose Byrne, who fought Sebastian Shaw (Kevin Bacon) in the superhero flick X-Men: First Class (2011).

Here's Bacon (as Shaw) attacking the team of mutant heroes.

Bill Maher, 2 Degrees of Separation

The comedian who once smoked a joint on his HBO show Real Time narrowly edged out Seth Rogen to rank third on our list of top cannabis celebs. He also appeared as himself in the political dramedy Swing Vote (2008), starring Kevin Costner, who also starred in JFK (1991) as lawyer Jim Garrison, who interrogated witness Willie O'Keefe - played with sleazy relish by Kevin Bacon.

Here's Bacon hitting on Costner.

Tommy Chong, 3 Degrees of Separation

Tommy Chong - our runner-up as the celebrity that people most associate with cannabis - has not had a chance to play alongside Kevin Bacon in a Cheech and Chong instalment. But he did play a small role in the action comedy McHale's Navy (1997) starring Tom Arnold, who appeared in a small role in the spy spoof Austin Powers: International Man of Mystery (1997), featuring Dr. Evil's righthand man Number 2 - played by Robert Wagner, who had a small role in the erotic thriller Wild Things (1998), starring Kevin Bacon.

The two didn't share much screen time together in "Wild Things," so enjoy this clip of Number 2 walking out on Dr. Evil instead.

Snoop Dogg, 3 Degrees of Separation

Rap icon Snoop Dogg - who topped our list as the face of cannabis - also has quite a few acting credits to his name. He played suave gangster Huggy Bear in Starsky & Hutch (2004), which starred Ben Stiller, who made a cameo in Anchorman (2004) - as did Tim Robbins, who co-starred with Kevin Bacon in the drama Mystic River (2003).

Unfortunately, Bacon didn't join Stiller and Robbins for the infamous brawl scene from "Anchorman."

Banner Image: Kevin Bacon at the 15th Annual Critic's Choice Awards, Hollywood Palladium, Hollywood, CA. 01-15-10 (s_bukley / Shutterstock.com)