Not intended for nefarious purposes...

Get-RickAstley.ps1

function Get-RickAstley(){
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(587,150)#D
[console]::beep(493,150)#B
Start-Sleep -m 20
[console]::beep(698,400)#F
[console]::beep(698,400)#F
[console]::beep(659,500)#E
Start-Sleep -m 50
##
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(523,150)#C
[console]::beep(444,150)#B
Start-Sleep -m 20
[console]::beep(659,400)#E
[console]::beep(659,400)#E
[console]::beep(587,400)#D
[console]::beep(523,100)#C
[console]::beep(440,100)#A
Start-Sleep -m 50
##
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(587,150)#D
[console]::beep(493,150)#B
Start-Sleep -m 20
[console]::beep(587,400)#D
[console]::beep(659,400)#E
[console]::beep(523,400)#C
[console]::beep(493,150)#B
[console]::beep(440,150)#A
Start-Sleep -m 20
[console]::beep(440,150)#A
[console]::beep(659,250)#E
[console]::beep(587,250)#D
Start-Sleep -m 200
##
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(587,150)#D
[console]::beep(493,150)#B
Start-Sleep -m 20
[console]::beep(698,400)#F
[console]::beep(698,400)#F
[console]::beep(659,500)#E
Start-Sleep -m 50
##
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(523,150)#C
[console]::beep(440,150)#A
Start-Sleep -m 20
[console]::beep(880,600)#A
[console]::beep(523,400)#C
[console]::beep(587,400)#D
[console]::beep(659,100)#E
[console]::beep(587,100)#D
start-sleep -m 50
##
[console]::beep(440,150)#A
[console]::beep(493,150)#B
[console]::beep(587,150)#D
[console]::beep(493,150)#B
Start-Sleep -m 20
[console]::beep(587,400)#D
[console]::beep(659,400)#E
[console]::beep(523,400)#C
[console]::beep(493,150)#B
[console]::beep(440,150)#A
Start-Sleep -m 50
[console]::beep(440,150)#A
[console]::beep(659,250)#E
[console]::beep(587,250)#D
}