This past weekend, Chris Rock made his Total Blackout stand-up comedy tour stop in New Orleans, Louisiana. Prior to Rock’s Saturday night (March 25) set at the Saenger Theatre, Dave Chappelle walked out on stage, to perform a reported 10 minutes of material. After Rock took the microphone, Dave remained on stage, where he witnessed his peer’s act for the reported 80 minute duration of the concert.

“Tonight, you are all part of a social experiment…Stranger things have happened in New Orleans,” Chappelle told the audience upon taking the microphone. That may lead some to wonder if the two stand-up juggernauts, television show creators, and actors may be taking this concept on the road.

On Instagram, Rock likened the affair to Watch The Throne, Jay Z and Kanye West’s 2011 joint album.

Watch the throne part 2. Total blackout tour 2017 . A post shared by Chris Rock (@chrisrock) on Mar 26, 2017 at 11:24am PDT

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Other comedy giants on hand included “Roast Master” Jeff Ross, known for Comedy Central’s celebrity roast series, and Eric Andre. They opened, prior to the “Social Experiment.” Actress Rosario Dawson, who starred with Rock in Top Five was also present:

In case you missed it. A post shared by Chris Rock (@chrisrock) on Mar 26, 2017 at 11:21am PDT

Both Rock and Chappelle are now attached to Netflix deals. Last week, Dave debuted his first two of three specials with the streaming platform (part of a reported $60 million deal). These specials, filmed over the last two years in Los Angeles, California and Austin, Texas, were the star’s first in more than 12 years. Last October, Rock agreed to similar terms with Netflix, for two specials at a reported $40 million. The first of the pair is expected to tape later this year.

Late last year, both comedy giants appeared in an election sketch together during Chappelle’s hosting of SNL:

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In a 2006 episode of Inside The Actor’s Studio, Chappelle listed Chris Rock (as well as Richard Pryor, Eddie Murphy, Paul Mooney, and voice actor Mel Blanc) as leading influences.

Rock’s Total Blackout Tour currently runs through June.