Fast-rising young nu-jazz vocalist and songwriter Nellie McKay is Doris Day’s biggest fan. She reviewed a Day biography for The New York Times and last fall released Normal as Blueberry Pie: A Tribute to Doris Day. Though two generations younger, McKay claims she shares with Day “a sunny gosh-gee-swell positivity and a love for the Great American Songbook.” The London-born McKay has spent much of her life in the U.S. (including a year in Olympia, Washington as a child). At 19, she released her 2004 debut album, the cabaret-infused double-disc Get Away From Me (a little dig at Norah Jones). Since then, McKay has appeared on Broadway, in the movie P.S. I Love You with Hilary Swank, and recorded with Cyndi Lauper and k.d. lang. For Blueberry Pie, she handpicked 12 lesser-known Day songs from a catalog of over 600 tunes. From the pert “Do Do Do” to the nostalgic “Sentimental Journey,” McKay’s phrasing is subtle and elegant, unlike her somewhat brash, bratty public persona. Today, she’ll perform for the live radio broadcast of Garrison Keillor’s A Prairie Home Companion. ERIN K. THOMPSON

Sat., April 3, 2:45 p.m., 2010