As songwriting partners, Daryl Hall (the blonde one) and John Oates (the mustachioed one) were tentpoles of the 1970s and 1980s music scene. Beginning with “She’s Gone” and continuing on through “Rich Girl,” “Kiss on My List,” “Private Eyes,” and “I Can’t Go For That,” they’re arguably one of the biggest pop act duos in history.

Unfortunately, it took a riot and some gunfire to bring them together.

Both Hall and Oates were raised in the Philadelphia suburbs in the late 1950s and 1960s. After high school, both went on to Temple University—Hall to study music and Oates to major in journalism. While in their late teens, the two each had a doo-wop group they belonged to. Hall was a member of The Temptones, a successful act that had recently earned a recording contract with a label called Arctic Records; Oates was part of the Masters, which had just released their first single, “I Need Your Love.”

In 1967, both bands were invited to perform at a dance event promoted by area disc jockey Jerry Bishop at the Adelphi Ballroom on North 52nd Street in Philadelphia. According to Oates, the concert was a professional obligation: Bishop had the ability to give songs airtime.

“When Jerry Bishop contacted you, you had to go,” Oates told Pennsylvania Heritage magazine in 2016. “If you didn’t, your record wouldn’t get played on the radio.”

That’s how Hall and Oates found themselves backstage at the Adelphi, each preparing to perform with their respective group. (Oates said Hall looked good in a sharkskin suit with the rest of his partners, whereas he felt more self-conscious in a “crappy houndstooth” suit.) While Oates had previously seen The Temptones perform, the two had never met nor spoken. It’s possible they never would have if it weren’t for what happened next.

Before either one of them had even made it onto the stage, they heard gunshots. A riot had broken out between two rival factions of high school fraternities. They “really were just gangs with Greek letters,” Hall later told the Independent. Peering out from behind the curtain, Hall saw a fight involving chains and knives. Someone had fired a weapon.

“We were all getting ready for the show to start when we heard screams—and then gunshots,” Oates said in 2016. “It seemed a full-scale riot had erupted out in the theater, not a shocker given the times. Like a lot of other cities around the country, Philly was a city where racial tensions had begun to boil over.”

Worse, the performances were being held on an upper floor of the Adelphi. No one backstage could just rush out an exit. They all had to cram into a service elevator—which is where Hall and Oates came nose-to-nose for the first time.

“Oh, well, you didn’t get to go on, either,” Hall said. “How ya doin’?”

After acknowledging they both went to Temple, the two went their separate ways. But fate was not done with them.

The two ran into each other at Temple University a few weeks later, where they began joking about their mutual brush with death. By that time, Oates’s group, the Masters, had broken up after two of its members were drafted for the Vietnam War. So Oates joined The Temptones as a guitarist.

When The Temptones later disbanded, Hall and Oates continued to collaborate, and even became roommates. Hall eventually dropped out of Temple just a few months before he was set to graduate; Oates went traveling in Europe for four months and sublet his apartment to Hall’s sister. When he returned, he discovered she hadn’t been paying the rent. The door was padlocked. Desperate, Oates showed up on Hall’s doorstep, where Hall offered him a place to sleep. There, they continued to collaborate.

“That was our true birth as a duo,” Oates said.

Hall and Oates released their first album, Whole Oats, in 1972. Using a folk sound, it wasn’t a hit, but the rest of their careers more than made up for it. More than 50 years after that chaotic first encounter, the two have a summer 2020 tour planned.

Much like The Office, Friends continues to enjoy an always-growing and ever-loyal following—thanks in large part to streaming services, but also because of its brilliant cast and still-relatable storylines. And now that all six cast members have officially confirmed they'll be returning for a reunion show on HBO Max, could fans of the series be more excited?

Though very few details have been offered up about the reunion, it's expected to be an hour-long special that will bring Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc, Matthew Perry, and David Schwimmer back together again. In addition to the special, subscribers to HBO Max will have access to all of Friends's 200-plus hilarious episodes.

So in the spirit of warming up for what will inevitably turn into a Friends marathon, here are 25 minutes of bloopers, in two parts, for your enjoyment.

The Friends reunion special does not have a release date yet, but HBO Max is debuting in May 2020.