The Red Hot Chilli Peppers made a song with Post Malone, that is how I know them currently
I'm not super familiar with Post Malone, but I like what I have heard from him. Any recommendations for song of his I should listen to? 
rockstar by Post Malone is very popular, what is your favorite Red Hot Chilli Peppers song?
I thinks it's probably Californication. If I remember correctly, it was the first song I heard from them, so that's most likely a good reason why I still love the song so much.
That was the name of an album as well, right?
Yeah, it was the name of their best album, in my opinion at least. 
Do you have a favorite member of the band?
I've always liked Flea. He seems like a really fun guy. He has done some acting too.
I see that he had a severe battle with drug addiction as well. Glad to see he is doing better.
Yeah, he seems like he has struggled a lot in his life. But I know he does a lot of activism stuff nowadays which is really inspiring.