"Hat vs hat hair. The competition is intense. @NathanKress," the Big Time Rush star wrote on Instagram.
But get this: They weren't the only two familiar guys at the race track! Awkward. star Brett Davern was also there and he managed to snap a selfie with James, too.
The Toyota Pro/Celeb Race is an annual event in which celebrities race 10 laps around a track to raise money for Racing for Kids, a national program that fundraises for children's hospitals in California.
Do you think it's cool that Nathan, James, and Brett are taking part in such a charitable event? Share your thoughts in the comments section below!