Neil Patrick Harris and Sarah Michelle Gellar bring their little ones to the circus; Jennifer Love Hewitt and Brooke Burke celebrate Old Navy's "Mickey Through The Decades Collection" for Disney; Djimon Hounsou, Blair Underwood and others attend a luncheon for ICON MANN; Steve Nash hosts his foundation's Showdown event; Aimee Teegarden participates in a Star Wars-themed charity relay; Jaime King, Jessica Pare, Amy Smart and other stylish celebs are treated to manis, lunch and other goodies at The Revolve Beach House Summer Style Day—get caught up on weekend events in today's edition of Last Night's Parties.