Rihanna tells fans to 'calm down' after following Chris Brown on Twitter
Singer says it's 'Twitter not the altar'
Rihanna and Christina Aguilera's 'X Factor' performances 'not too raunchy'
Ofcom rules that singers' antics were acceptable
Rihanna and Britney Spears set for 'S&M' collaboration
Both singers tweet about forthcoming release
Rihanna and Cee Lo Green triumph at the Brit Awards
Singers win International Solo Artist gongs
Rihanna and Bruno Mars top the UK albums and singles charts
They're ahead of the likes of Jessie J and Plan B
Bruno Mars on track to beat Rihanna in UK singles chart
Plus Adele, British Sea Power and Plan B also on course to feature
Rihanna and Drake on course to end Matt Cardle's chart reign
Plus Plan B looks likely to return to the top of the album charts
Rihanna announces 2011 UK arena tour and ticket details
Singer set for six UK arena dates in October 2011
Rihanna prevents Take That from topping UK singles chart
Plus Susan Boyle is Number One in UK albums chart and Cee-Lo-Green scores a high new entry