The Mirage's 20th anniversary includes a Slash & Friends concert tonight at the Bare Pool Lounge. The lineup: Kiefer Sutherland as emcee and Courtney Love, Nicole Scherzinger of the Pussycat Dolls, Cheap Trick's Rick Nielsen, Aerosmith's Joe Perry and others. Tickets: $125 at The Mirage box office or $150 at the door. Afterwards, the party moves to Jet nightclub, with celebrity tattoo artist Mario Barth hosting.