I dunno, Rita, it may not be such a bad deal in light of recent events involving an alleged lack of retweets...

The pop starlets - who've collaborated on single Black Widow - were reportedly offered $100,000 each to take to the stage at Planet Hollywood in Vegas, but both are said to have rejected the opportunity to perform the pair of gigs, according to TMZ.

The offer is a lot less than the $476,000 per show wage Celine Dion is said to be on for her Vegas performances. Britney Spears is also said to be earning a huge sum at $475,000-per-gig - which tots up to $29.7 million overall for her 96 shows - while Jennifer Lopez was offered $350,000 for a run of 72 gigs that will see her take home $26.3 million.

Kanye West, however, could've had an even bigger Vegas pay day had he agreed to a reported $500,000-per-show deal to perform three shows a week for three weeks... While the bumper contract would've netted the rapper a huge $4.5 million sum, he is said to have declined the offer but it is not known why. He's probably too busy working on his quest to infiltrate the world of fashion/generally being a genius.

Iggy reportedly invited Rita onto the stage at Shepherd's Bush Empire in west London while she was performing to a packed out crowd recently, and the pair launched into a rendition of Black Widow. This may or may not have contributed to what TMZ have described as an "anemic" Vegas price tag...