Gay, black, country singer holds the record for longest #1 single.

Lil Nas X (Image: Jean-Baptiste Lacroix / AFP / Getty Images)

Lil Nas X on Monday conquered one of the longest-held records in pop music history.

With “Old Town Road” securing an astounding 17th week on the Billboard Hot 100, the rapper has officially broken the record first set by Mariah Carey and…