Simplify the following text for a Grade 11 native English-speaking person.
Original: It was popular throughout the 1980s and the beginning of the 1990s , combining the flamboyant look of glam rock and playing a power-chord-based heavy metal musical style .
Simplified: It was popular throughout the 1980s and briefly in the early 1990s , combining the flamboyant look of glam rock and playing a power-chord based hard rock musical style .