Los Angeles - Rihanna is giving fans the chance to meet her, Kanye West or Sir Paul McCartney - for at least $10 000.
The We Found Love hitmaker has unveiled a list of lots that are being sold to raise money for her Clara Lionel Foundation (CLF) and among the once-in-a-lifetime packages available are one-on-one time with the stars.
Both Rihanna and Kanye - who hasn't yet announced a 2015 tour - are offering VIP concert packages which include VIP tickets, private meet and greets before the show and exclusive merchandise, with starting bids from $15 000.
Paul McCartney fans can land tickets to a gig of their choice, the chance to watch the Hey Jude singer soundcheck and get a private audience with the Beatles legend, with bidding beginning at $10 000.
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Other lots on offer include the Music Legends Guitar Package, which has a starting bid of $8 000 and includes three instruments, one black six-string ESP signed by all the members of Metallica, a Heritage Cherry Sunburst Perimeter Guitar autographed by Slash and one of just eight hand-painted acoustic instruments used by Coldplay's Chris Martin on their Mylo Xyloto tour and signed by all the band.
Other items being sold at the auction include Chopard diamond earrings, a limited edition Rolling Stones book, a luxury five-day all inclusive hotel break and a piece of art by Damien Hirst.
The auction runs until 19 December.
Rihanna's CLF is named in honour of her grandparents Clara and Lionel Braithwaite and works globally to improve the lives of undeserved communities in arts, culture, education and health.