Last year, the Color Run swept through campus when over 10,000 people participated in the “Happiest 5k on the Planet” (in the Happiest of Valleys, I might add). This year, Homecoming brought the event back for a second round, and the Color Runners spent the morning hustling through campus in a rainbow-tinted blur.

If you’ve ever wondered what the “happiest 5k on the planet” looks like, well today is your lucky day. We’ve compiled our favorite photos from the day, so check out the race’s progression below:

The race began pretty tamely.

With bubbles.

Lots and lots of bubbles.

And color!

Purples and pinks galore.

The last stop was the Blue Station, and by the time runners got through, they looked like happy, sweaty Smurfs.

After they crossed the finish line, Color Runners were greeted with a rainbow-bright festival, bumping music, refreshments, and general celebration over their 5-kilometer accomplishment.

The Lion even made an appearance!

Three cheers for colorful, happy exercise! Here’s to hoping that Homecoming will bring The Color Run back to Penn State for a third time in 2015.

Morton Lin and Molly Hyland contributed the photos for this story.