The 32-year-old singer certainly caught the eye in her racy low-cut corset, lace stockings and boots while performing at the sold-out Tidal X: 1020 concert at Brooklyn's Barclays Center, New York.
Concert organizers said all money from ticket prices was going to the charity, estimated to be about $1 million.
Jay-Z and other artists announced in March that they were the co-owners of Tidal, which was presented as the first artist-owned music and video platform. It's a membership-based service that offers subscribers two levels — $10 for standard sound quality and $20 for high fidelity sound quality.
Other artists who performed at the concert included rappers T.I., Rick Ross, Lil Wayne and Meek Mill, reggae performer Damian Marley, country singer Thomas Rhett, French band Indochine, and singers Nick Jonas, Alessia Cara and Justine Skye. At the concert, it was announced that Marley had become one of Tidal's artist-owners.
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