Shonda Rhimes celebrates Grey's Anatomy becoming longest-running medical drama

Tonight's episode of Grey's Anatomy, the 15th Season 15 episode entitled We Didn't Start the Fire, will make the hit show the longest-running primetime medical drama.

To celebrate this momentous occasion, series creator Shonda Rhimes took to her official Shondaland website to share 23 new behind-the-scenes photos.

The creator, 'popped open her laptop and chose a few of her fave photos,' according to the site, which go all the way back to the pilot episode in 2005.

Behind-the-scenes: Grey's Anatomy creator Shonda Rhimes shares new behind-the-scenes photos as the show becomes the longest-running primetime medical drama

Behind-the-scenes: Grey's Anatomy creator Shonda Rhimes shares new behind-the-scenes photos as the show becomes the longest-running primetime medical drama

Helipad: She also shared snaps of the helipad at Komo Plaza in Seattle, which stood in for the helipad at the fictional Seattle Grace hospital.

Helipad: She also shared snaps of the helipad at Komo Plaza in Seattle, which stood in for the helipad at the fictional Seattle Grace hospital.

The first photo features series stars Ellen Pompeo, T.R. Knight, Katherine Heigl and Sandra Oh, during, 'one of their first fancy photo shoots with a real photographer.

'I snapped this photo of the moment. It's blurry, but that somehow made it feel slightly magical to me,' Rhimes said.

She also shared snaps of the helipad at Komo Plaza in Seattle, which stood in for the helipad at the fictional Seattle Grace hospital.

Producers: Executive producers Betsy Beers and Rob Corn on the set during the pilot

Producers: Executive producers Betsy Beers and Rob Corn on the set during the pilot

Sandra and Peter: 'Sandra is an intense actress,' Rhimes said. 'She and Peter would have long conversations about her character before each scene. That intensity is how she made Cristina so amazing

Sandra and Peter: 'Sandra is an intense actress,' Rhimes said. 'She and Peter would have long conversations about her character before each scene. That intensity is how she made Cristina so amazing

Rhimes added that these, 'early and important helipad shots helped us sell the hospital as a part of the city of Seattle.'

Along with photos of executive producers Betsy Beers and Rob Corn on the set during the pilot, she shared a shot of Peter Horton and Sandra Oh on the set.

'Sandra is an intense actress,' Rhimes said. 'She and Peter would have long conversations about her character before each scene. That intensity is how she made Cristina so amazing. 

Laughing on the set: The image showed Rhimes laughing with Knight and Issaiah Washington, 'in between takes of George's first big moment in the OR'

Laughing on the set: The image showed Rhimes laughing with Knight and Issaiah Washington,

read more from dailymail.....

Get the latest news delivered to your inbox

Follow us on social media networks

NEXT Jussie Smollet WON'T return to Empire as Fox renews show for sixth season ...