Fast tempo songs:

I like to move it, move it: https://www.youtube.com/watch?v=hdcTmpvDO0I&t=22s

Gummy Bear: https://www.youtube.com/watch?v=astISOttCQ0
 

Slow tempo songs:

Show yourself: https://www.youtube.com/watch?v=nrZxwPwmgrw

How far I’ll go: https://www.youtube.com/watch?v=cPAbx5kgCJo

All about tempo: https://www.youtube.com/watch?v=fTyD2pfAsaI