![2009](http://monsterph.com/cdn/shop/articles/12_{width}x.jpg?v=1595423720)
2009
The Beats® line expands. Beats Solo is introduced, and Monster successfully engages major music performers to endorse products. Lady Gaga introduces HeartBeats headphones and Justin Bieber jumps on board with The Beats™ Solo Justin Bieber Edition. The strategy is successful, and the Beats name becomes a household word.
![](https://cdn.shopify.com/s/files/1/2808/7920/t/7/assets/head-11.png?v=3694954109540550308)