1) American musical trio 
Hatebeak is a death metal band, formed by Blake Harrison, Mark Sloan, and Waldo, a 21-year-old Congo African Grey Parrot. Hatebeak is the only band to have an `avian` vocalist. The band members do not use their last names on their releases `for the mystery`.{fact|date=February 2011} Hatebeak also does not tour so as to not torture the bird. Ha...