[Clubmusic] Automatic Drops

[Mus1cL1stener]

Hey guys, hope that this Question is in the right Forum.

So, last night i listened to a lot of of Clubmusic Playlist's (some created by Spotify and some of Friends)
I noticed at a Playlist, that after the End of a song, the next one started immediately with his own Drop. 
Maybe someone knows what Playlist it was, or can give me some advice how i can make it.
I appreciate every answer and hope you can help me!:)