Jem Aswad Senior Music EditorLil Nas X, who made a big splash at the 2020 Grammy Awards but has kept a low profile for much of this year, dropped a trailer for his next single “Holiday” on Sunday Night Football, which stars Michael J. Fox.The clip finds Nas still working the cowboy angle that brought him such success with “Old Town Road,” rolling into a Western town only to see Santa Claus being ejected from a saloon for being drunk.