"Have You Ever Been Mellow" is the first single of Dutch pop-gabber group Party Animals and was released on their debut album, Good Vibrations (1996).

The track was released in January 1996 by Mokum Records and became their first number one hit in the Netherlands.

Richard Smith from Melody Maker wrote, "'Have You Ever Been Mellow' is wa-wa-wa-wa nosebleed gabba that gallops along at a hundred zillion beats per second.

Party Animals' Jeff and Jeroen are basically Fierce Ruling Diva, the dutch hardcore duo who practically invented the genre.

"[3] A reviewer from Music Week gave the song three out of five, adding, "The happy hardcore track with helium hooks was a minor hit in May but, after gaining considerable support on The Box, should be big this time.