A Colorado high school's lip dub video to Katy Perry's hit "Roar" has become an Internet sensation.

Over 2,000 students and staff at Lakewood High School in Lakewood, Colo., gathered over homecoming week on "Spirit Day" to make the video, which they said was done in a one-shot take.

The school, whose mascot is fittingly a tiger, had students from every stripe of high school life outfitted in orange and black lip-sync to Perry's lyrics group by group. Panning from student athletes to cheerleaders to members of the pep band, drama club and more, the high-energy video ends with everyone gathering on the football field in what seemingly turns into the ultimate pep rally.

The school's take on her song captured Perry's attention, and the pop singer tweeted about it on Sept. 25.

Oh my GAWD. Now this is what I call school SPIRIT: http://t.co/tNBl211XLl I hear you roaring LAKEWOOD HIGH! ?

- Katy Perry (@katyperry) September 25, 2013

Courtney Coddington, the student body president who directed and produced the video, and fellow senior Gavin Rudy, an aspiring filmmaker who edited it, said they were blown away by the response online.

"It's crazy….Honestly even through all the planning, I was anticipating maybe a goal of 100,000 views, but it's gotten huge," Coddington, 17, told ABC News.

The two seniors said they had no problem getting the entire student body on board.

"We set up a sign up sheet online for the clubs and within a couple of days, we had 80 clubs and teams sign up for a chance to be in the lip-dub," Coddington said.

The school plans to submit the video to " Good Morning America"'s "Roar With Katy Perry" contest, which asks high schools to make their own rendition of "Roar."

Videos like these are being produced by high schools across the country for a chance to have the pop star come to the winning school and give a very special performance.

Students at high schools that qualify can submit their very own two-minute "Roar" video until Oct. 1 at 5 p.m.

CLICK HERE TO SUBMIT YOUR SCHOOL'S OWN 'ROAR' VIDEO NOW!

Katy Perry and "GMA" will pick the winning video and broadcast the concert live on "GMA" on Oct. 25, Perry's birthday.

It's not the first time students at Lakewood High School have channeled Perry. Two years ago, students recorded a similar video to her hit, "Firework." Coddington and Rudy were eager to show off their school spirit in another video and jumped at the "GMA" contest.

If selected for their "Roar" rendition, Coddington and Rudy say they want to turn the concert into a benefit for those affected by the massive Colo. floods, which devastated many communities and hit as the planning for their video was underway.

Lakewood High School Principal Ron Castagna said the students' idea to give back with the video is a reflection of the heart, drive, and spirit of the student body.

"This has been a big 'we' effort. They are thrilled if we win it, but the message really is, 'We are family,'" Castagna said, referencing the school's motto. "This generation is not what it's portrayed out there….We've got kids going to medical school and wanting to be teachers. It's a great generation and we got to start building up our kids and building up."