Will & Grace revival first look: Check out sweet back-to-set video of Debra Messing, Megan Mullally

The neurotic pair is back!

Hit American sitcom Will & Grace's revival season has officially begun filming almost 11 years after the last original episode aired in 2006. And to mark the occasion, series star Debra Messing shared a sweet on-set video with co-stars Megan Mullally, Eric McCormack and Sean Hayes piping in.

"It's opening night," Messing announced in the clip, adding, "We're about to shoot it!" To which Mullally hilariously added, "On Broadway... No, wait, that's not right."

And it's not just the two actresses – who starred as Grace Adler and Karen Walker in the eight-season long comedy – who appear to be excited about the show's reboot. As the camera panned, fellow cast members Hayes (Jack McFarland) and McCormack (Will Truman) too joined in the celebrations.

After The Wedding Date star shared the behind-the-scenes video, even Mullally couldn't resist but share some back-to-the-set excitement with her fans. Taking to Instagram, the Emmys-winning actress posted another cute video of the cast taping the first day of filming on what will be the ninth season of Will & Grace.

"Tonight is our first taping and Sean Hayes got fired at the last minute," the Smashed star said, adding in the caption, "#willandmfinggraceyo".

Set for a September premiere, the 16-episode revival of the popular NBC show has already received an extension – Will & Grace will now be going for a second revival (season 10). And even though the show ended with the lead characters in the future with children, when the reboot airs, focus won't be on the events of the 2006 series finale.

"We frankly did not want to see them being either good or bad parents. We wanted them to be Will and Grace," executive producer David Kohan teased to Entertainment Weekly.

Will & Grace returns to NBC on 28 September at 9 pm EST.