Brad Paisley reunited with an old music video pal on Wednesday (March 18) … none other than “Online” and “Celebrity” co-star Jason Alexander.

Paisley and his wife Kimberly Williams-Paisley posed for a selfie with the actor while attending A Night at Sardi’s, a gala event in Beverly Hills, California, to support the research efforts of the Alzheimer’s Association.

Paisley gave a nod to the pair’s comedic music video with the caption, “I’m so much cooler online. Not the guy in the middle though. He’s cooler in person. #endalz”

Alexander reciprocated with a Tweet mentioning the Paisleys and several other celebrities who attended the event.

Alexander not only starred in Paisley’s “Online” video, but also directed it -- for which he won the 2007 ACM and CMA trophies for music video of the year.

Since it is Throwback Thursday, let’s just take a look at some of the other familiar faces in the “Online” video. It’s a treasure trove of celebrity appearances such as William Shatner (who also appears in the “Celebrity” video), Estelle Harris (who played the mother of Alexander’s character George Costanza in Seinfeld), Patrick Warburton, Shane West, Maureen McCormick, Kellie Pickler and a teenage Taylor Swift ... in what was probably one of her last times ever singing backup.