Assalamu ʿalaykum Shaykh. I’m considering paying a Muslim influencer who became famous through MMA to promote a halal product on Instagram. The video would be on his account, and he would speak positively about the brand. Is it permissible to partner with him for this, knowing his fame came from MMA? And if I sponsor a YouTube video with an influencer and I’m only responsible for a 90-second segment where the influencer promotes a brand in a halal way, am I sinful if the rest of the video contains music or haram content? Jazakum Allahu khayran.
If you're paying him to promote something permissible, and the contract between you both is shariah compliant, and you're contractual relationship does not promote MMA or his role therein; I see no religious concerns with the suggestion.
And Allah knows best.