Singer also makes references to the drug on Twitter
Pair set to hook up for duet in LA
Singer says she's 'waiting for the call' from frontman
The singer closes her six-month tour with a dozen bottles of bubbly
Rihanna says 'fuck you' to Eva Hoeke
'Jackie' editor in chief claims slur was 'a joke'
The singer says she was verbally attacked by a man at a hotel
Her collaboration with Calvin Harris also tops the most listened to songs list
Plus Kate Bush scores a high new entry with LP '50 Words For Snow'
Watch what the singer gets up to offstage in Jay-Z narrated footage on NME.COM now