Singer posts snaps from video shoot on Twitter
Singer says she teamed up with her ex because 'he's the hottest R&B artist around right now'
Bishop Vibert Lowe also says 'Talk That Talk' star is setting a bad example with her partying
Ri-Ri and Jennifer Hudson are both reportedly under consideration to play the singer
Rihanna also reportedly looking to move to east London
Knob-twiddler says fans should support 'Talk That Talk' singer in forgiving her ex-boyfriend
Controversial singer has added some very NSFW verses to RiRi's new single
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