More recently, "video game beats" have appeared in popular songs such as Kesha's "Tik Tok", the best-selling single of 2010, as well as "U Should Know Better" by Robyn featuring Snoop Dogg, and "Hellbound" by Eminem. The influence of video game music can also be seen in contemporary electronica music by artists such as Dizzee Rascal and Kieran Hebden. Grime music in particular samples sawtooth wave sounds from video games which were popular in East London. English power metal band DragonForce is also known for their "retro video game influenced" sound.