O2 (UK) they can do it too" in reference to Vodafone and EE, O2's biggest competitors and the UK's top three mobile-telecoms companies. O2 (UK) Telefónica UK Limited (trading as O2 – stylised as O) is a telecommunications services provider in the United Kingdom, owned by the Spanish multinational Telefónica, and is headquartered in Slough. With 25 million subscribers (as of December 2017), O2 is the second-largest mobile network operator in the United Kingdom after EE, with Vodafone in third place. O2 was formed in 1985 as Cellnet, a 60:40 joint venture between BT Group and Securicor. In 1999, BT Group acquired
The Labyrinth Tour: Live from the O2 The Labyrinth Tour: Live from the O2 The Labyrinth Tour: Live from the O2 is a live and first video album by British singer Leona Lewis and was recorded on 18 June 2010 in London, while Lewis performed at her tour The Labyrinth. It was released on 29 November 2010 with a 10 track live CD, and a Blu-ray version was also released. The recording was broadcast on UK television channel Watch on 3 December 2010. It entered the Official UK Music Video Chart at number 4 on 5 December 2010. It has thus far spent 12 weeks in the