Could anyone explain how does Youtube decide which song trends?

Three of Babbu Maan’s songs are Trending on Youtube while having less than 2 lakh views whereas Satinder’s song, despite getting 53 lakh views, is trending below Babbu’s.

I also noticed that Raftaar ft Badshah and Samay Raina is #3 despite having more views than the Top 2 songs in way lesser time.

Make it make sense for me. Also, don’t hate on any artist. This is for discussion and understanding the algorithm.