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Ke$ha has enlisted Black Eyed Peas rapper for a verse on her new single "Crazy Kids." 

"Crazy Kids" will be the third single off Kesha's Warrior album, following "Die Young" and "C'Mon." 

Tuesday is a big day for both artists. will be dropping his new solo album as Ke$sha's documentary series, "My Crazy Beautiful Life," makes its premiere on MTV. 

"Crazy Kids" is slated to hit radio next Monday.'s brief verse comes towards the end of the track, which keeps Ke$ha's whistles and whispering to her "Animals" from the original album version in tact. 

Ke$ha has also released cover art for the single, which shows her in what some are calling a more polished and cleaned-up look.