The New York Post reports Usher is making strict demands for his 24th birthday bash in the Highlands club in Los Angeles on October 14th. Amongst the invitees are L.A. Reid, Ice Cube, Pink, Sean ‘P. Diddy’ Combs, and Usher’s girlfriend and TLC star Chilli. The guests are advised to wear all-black outfits, and must arrive in black limousines or black SUVs. The masquerade theme requires the guests to wear masks as well.