Rachel Bloom had a quick response to Neil Patrick Harris' tweet about her during the Tonys.

The 31-year-old actress wrote back after Harris appeared to shade her backstage gig Sunday at the 2018 Tony Awards.

Bloom, who served as a backstage host for the second consecutive year, reminded Harris they've met after the 44-year-old actor questioned who she was and shared his son's remarks about her behavior.

"Who is the woman in the top hat backstage at @TheTonyAwards? Gideon remarked that she says 'like' and 'oh my god' a lot. I'm confused..." Harris tweeted.

"I'm a big fan of yours," Bloom told the former "How I Met Your Mother" star.

"We've met numerous times and my husband, Dan Gregor, wrote for 'How I Met Your Mother' for 5 years. Notably, he wrote the episode where your character finally meets his father."

Bloom's response appeared to jog Harris' memory.

"Indeed! Well said. Thanks for the reminder. How was backstage?" he asked the "Crazy Ex-Girlfriend star."

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Harris has hosted the Tonys four times but did not attend this year's ceremony.

He congratulated the entire production team on Twitter following his exchange with Bloom.

"Congrats to the entire @TheTonyAwards production team. It's a beast, and you tamed is incredibly well. So many performances, so many awards. Not an easy task. Well played," the star wrote.

Photo credit: Rachel Bloom/Instagram