Smart answer:

Your search for What group sings "Who Let the Dogs Out" returned the following results:

Baha Men

The song is 'Who Let The Dogs Out' - Baha Men.

Source:

The Mets and Cards used as a rally

The Mets and Cards used as a rally cry the 2000 hit song "Who Let The Dogs Out?"

" type of song

"Who Let the Dogs Out?" type of song.