Wireless Festival is an annual rap and hip-hop music festival that takes place in London, England. It is owned and managed by Live Nation. While it started as primarily a rock and pop festival, since the early 2010s, it has focused on hip-hop and other genres of music.

O2 (typeset as O2) is a global brand name owned by the Spanish telecommunications company Telefónica. The company uses the O2 brand for its subsidiaries in the United Kingdom and Germany. Since 2018, it is also used as an online-only flanker brand in Spain.