Millennium Dome the dome's new owners, the Anschutz Entertainment Group, to a design by HOK SVE and Buro Happold. It cost £600 million, and the resulting venue opened to the public on 24 June 2007, with a concert by rock band Bon Jovi. During the 2012 Summer Olympics, the artistic gymnastics events, along with the medal rounds of basketball, were held at The O2. It also held wheelchair basketball events during the 2012 Summer Paralympics. For sponsorship reasons, during those times the arena was temporarily renamed the North Greenwich Arena. Issues related to the Dome damaged Peter Mandelson's and John Prescott's political
O2 (Ireland) 3 Ireland upon completion of the deal. The deal was cleared by the EU in June 2014. On 15 July 2014, the acquisition was fully completed. On 2 March 2015 it was announced on social media that O2 Ireland and Three Ireland were merging with O2 posting the following message to their Twitter page: "Today, O2 will become Three as 1.5 million customers are welcomed into the Three family. This means the O2 logo will be replaced by a Three logo in stores, on the website, and on phones and bills. All the benefits you experienced as an O2 customer