songs = {
    ('Nickelback', 'How You Remind Me'),
    ('Will.i.am', 'That Power'),
    ('Miles Davis', 'Stella by Starlight'),
    ('Nickelback', 'Animals'),
    ('KnucklePuck', 'Shapeshifter'),
    ('Metallica', 'Enter Sandman'),
    ('Mayday Parade', 'Miserable at Best')
}

kill_nickelback = {song for song in songs if song[0] != 'Nickelback'}

print(kill_nickelback)