Singer blames a cold for her lack of socialising
Singer also switches on London shopping centre's Christmas lights
Australian journalist streaks as singer refuses to speak to press and fans
A late start causes German fans to jeer
Rihanna releases latest album alongside Bjork, Tulisa and Led Zeppelin
Guests including P Diddy joined Rihanna last night (November 17) as she continued the European leg of the 777 tour
The singer's ambitious transatlantic tour of seven countries in seven days continues
'Nobody's Business' is taken from forthcoming 'Unapologetic' album
South American date is the first of seven gigs in seven days in seven different countries