|Washington Post 12/14/15 (Jeff Kravitz/FilmMagic)|
It's not just the elderly who now needs hearing aids, but even younger folks now with all the loud music they are subjecting their ears to.
As the article points out, the ear plugs should be all the way in the ear canal to be truly effective and not stick out as Justin uses it.
When it’s noisy, even Justin Bieber wears earplugs. Washington Post 12/14/15