GOP scenesters prepare for parenthood before marriage, Morgan Spurlock is spurned by McDonald's and Weinerschnitzell, and The Kennedys is now out on iPad! Welcome to The Smart Set, a look at the day's gossip columns and blogs, filtered.

• New York Mayor Michael Bloomberg put on bell bottoms and sang along to ABBA on stage after a failed attempt to descend from the rafters as Spiderman on Saturday night at the annual Inner Circle press-and-politico gathering. The billionaire three-term mayor piped up for a rendition of "Mamma Mia" ("Mayor Mia") and did his best to look comfortable in a wig and butterfly collar. [NY Post]

• One-time Dick Cheney spokeswoman Juleanna Glover is expecting a child with boyfriend Christopher Reiter, a longtime GOP lobbyist who now owns the Washington, D.C. furniture boutique Muleh. The pair of 42-year-olds have been dating for some 18 months  and the baby, Reiter's first and Glover's fourth, is due in August. [Reliable Source]

• Morgan Spurlock made his name with anti-fast food documentary Supersize Me, so he can't possibly be surprised that McDonald's turned down his request to help sponsor his latest project, The Greatest Movie Ever Sold, which is entirely funded by product placement. But the big arches wasn't the only outfit that turned Spurlock down. He was refused by most fast food outlets he approached for the movie, including Weinerschnitzel. [Reliable Source]

• Controversial documentary The Kennedys, which the History Channel dropped under pressure from the Kennedys themselves, is going to be released on iPad when it airs on ReelzChannel on April 3. [Daily Intel]

• Reese Witherspoon married CAA agent Jim Toth on Saturday at her home in Ojai, Cali., with both her ex-husband Ryan Phillippe and ex-boyfriend Jake Gyllenhaal in attendance. [Vulture]

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Adam Martin