The nabobs were nattily attired at MassArt’s annual Fashion Show, which was held over the weekend. The evening began with a reception at Cinquecento Trattoria in the South End and ended with a runway show of student designs at the Power Station next door. Event co-chairs Emma Calus and Ashley Karger welcomed over 1,000 guests, including Ashley Bernon, Kristina Hare Lyons, Megan O’Block, Roberta Moore, Molly Shannon, Anne Gallo and Jean Hynes. . . . Meanwhile, Power Launch, the innovation lab cofounded by Saskia Epstein and Spark Capital’s Todd Dagres, held its first “pitch event’’ the other night. Five entrepreneurs pitched their ideas to a panel of judges who awarded $170,000 to help the early-stage organizations. Judges included Bob Davis of Highland Capital Partners, Linda Pizzuti Henry of The Boston Globe, Frank Moss of Twine Health, Colette Phillips of Colette Phillips Communications, Patrick Lyons of the Lyons Group, Paul Sagan, executive in residence at General Catalyst Partners, and Dagres.