Solution to 6: Sensational!
The title hints at sensational spelling, and each clue hints at a word that is sensationally spelled as a band name. The year in parentheses is the year that the band became active. Use the letter that is in the supposedly misspelled band name.
1. Gem - Jem: J
2. Tokyo Hotel - Tokio Hotel: I
3. Churches - CHVRCHES: V
4. Monkeys - The Monkees: E
5. Gorillas - Gorillaz: Z
Using these letters gives the solution jivez.
JIVEZ