Looking for something to do today? Agenda‘s got you covered:

Marcus Samuelsson went from being an Ethiopian orphan to the youngest chef ever to receive a three-star restaurant review in The New York Times. He will be in Merchandise Mart reading from his renowned new memoir and serving cocktails and hors d’oeuvres.

Chicago rapper Psalm One hosts Rap Karaoke at Jerry’s. Yes, “rap karaoke.” No, you’re not the first person to think of doing Biz Markie.

For your end-of-the-week injection of transcendentalism, hear WBEZ’s Jerry McConnell moderate a discussion at the Symphony Center about the musical influence of earth’s rivers. Yo-Yo Ma contributes and performs.

For more on these events and others, check out the Reader‘s daily Agenda page.