Do you know them all? ;) Very famous in the meme community. Now borked by Gabe the Doggo. Enjoy

0:00 1.Rush B
0:09 2.Gangsta's Paradise
0:24 3.Better off alone
0:31 4.Giorno's Theme
0:39 5.Chug jug with you
0:48 6.Shreksophone
1:03 7.Take on Me
1:11 8.PPAP
1:21 9.Never gonna give you up
1:31 10.I'm Blue da ba dee
1:39 11.Spider Dance Undertale
1:49 12.Among Drip
1:56 13.One Million Voices
2:05 14.Nyan Dog
2:14 15.Dance of Dog
2:23 16.Wellerman (Sea Shanty)
2:32 17.Borkruto (Silhouette)
2:42 18.Megalovania
2:52 19.Duck Song
3:03 20.DJ got us falling in love again

Sources:
Gabe the dog from this channel    / @deathtrips  
   • newest dog source  
Undertale spider dance & sans