Artists getting paid to appear on Spotify playlist?

My daughter creates covers on YouTube - about 50k followers - and has been asked to record a specific cover for a modest amount of money for someone who curates a Spotify/Apple/Tiktok playlist. Their playlist insta account has about 174k followers (following only 7). Is this legit?

Sorry to get all clueless Dad on y'all. I actually work in entertainment but this stuff is new to me...