“Me and Matthew Perry were having lunch somewhere,” she recalled, “and we knew Lisa was getting her hair colored. So we ran into the hair salon, and I snuck up—she was in the sink, in the hair bowl—and I took the nozzle and just started washing her hair.”

“It definitely flew out of control,” she laughed, “and that was unfortunate”

But not unfortunate at all? “The excitement we had,” she said, “it feels like yesterday.”

The Morning Show actress also shared some behind the scenes tidbits about the long-running sitcom, revealing that Lisa in particular “hated when the audience laughed” during her lines, adding, “She’d be like, ‘Ugh, I’m not done! It’s not that funny!'”