Out YouTube stars Tyler Oakley and Korey Kuhl are among the 22 social media mavens cast for the upcoming 28th season of CBS' The Amazing Race.

Oakley and Kuhl also co-host the popular podcast Psychobabble.

“Today I leave to compete on @AmazingRace_CBS with my bestie @koreykuhl!! if you spot us in your country, say hey!,” Oakley, 26, tweeted.

The best friends will attempt to become the first gay team to win the $1 million prize since married couple Josh Kilmer-Purcell and Brent Ridge won the show's 21st season in 2012.

(Related: Josh Kilmer-Purcell, Brent Ridge win Amazing Race.)

Other contestants who will journey around the world include YouTube stars Burnie Burns and Blair Fowler; Vine celebrities Zach King and Cole LaBrant; Instagram models Jessica Versteeg and Brittany Oldehoff; and pro frisbee players Kurt Gibson and Brodie Smith.