As well as his boarding skills, Bam is best known for his roles in MTV's Jackass and Viva La Bam, while Tony Hawk is the best-known skateboarder there has ever been, in part due to his hugely popular video game series, Tony Hawk's Pro Skater.
The pair's friendship goes way back, with Bam even making an appearance in the third instalment of Pro Skater, but these days they are both in the mainstream limelight far less than they used to be in their heyday.
As such, new pictures showing the pals enjoying a reunion have got the skateboarding community flipping out with nostalgia.
Hawk shared a picture of their reunion on Instagram, captioned with the message: "So fun to catch up with this Jackass."
Hello noughties my old friend. Credit: Tony Hawk
Bam also shared a slightly more blurry picture of the pair, indicating in the caption that the old boarder buddies had reunited in Tallinn, the capital city of Estonia.
Bam and Tony, reunited in Estonia. Credit: Bam Margera
The pictures dredged up a lot of sentimental feelings among ageing fans.
One person commented: "Holy moly, what year is it? This is like... My teenage years watching MTV."
Another said: "Two legends standing or sitting right there, the two who changed and made my life a lot better."
A third added: "Legends, heroes of mine growing up, both u guys!"
Somewhat unbelievably, Tony Hawk is now 50 years old, but that doesn't mean he isn't still regularly tearing apart skate parks with a proficiency any 20-year-old would be proud of.
Bam has fallen on some tough times since 2011, however, particularly when his best friend and Jackass co-star Ryan Dunn died in a car crash.
The news was devastating for fans, family and friends, and it hit Bam hard - to quote the man himself, he and Dunn were 'hands down best friends'.
Footage of the skate star crying by the side of the road where the tragic crash occurred was only the beginning of a downward spiral. The death lead to rapid weight gain for him, as well as alcohol abuse. In the years that followed, he frequently ended up in fights, jail, or hospital.
A video titled Bam Margera's Typical Day is pretty much all you need to watch to understand the kind of shit that went on.
Following years of touring, dipping in and out of television appearances and general tomfoolery, Bam became a hermit, staying at home where he 'didn't have to deal with any shit', drinking heavily all the while.
Discussing his addiction, Bam said: "Since Dunn got in that crash, everything has changed dramatically, and instead of drinking for fun with your friends, it turned into drinking to forget."
The show followed him in rehab, where he talked about suicidal thoughts and how he had struggled to cope with life since 2011.
The 39-year-old checked himself into rehab for the third time last month, having had a child with his wife Nicole Boyd a few weeks prior. However, Bam checked out 10 days later.
In a post on Instagram he said: "I am not alone! I might not be in rehab with you, but I am surrounded by many sober family and friends, spiritual healers, therapist, sober coaches and my sponsor.
"I do not have a desire to drink because I have so much to do that being bored is out of the question. I don't want to drunk anymore because it ruins my focus of what I know what I have to do and I am having a blast doing it."
Here's hoping he manages to beat his addiction for good.
Featured Image Credit: Tony Hawk