Environmental advocate Maggie Baird , mother to Grammy Award-winning singers Billie Eilish and Finneas O’Connell, hosted a star-studded pickleball event over the weekend to combat food insecurity. Support+Feed, the nonprofit founded by Baird, hosted its inaugural Pickleball Invitational and Game Night Fundraiser on Saturday at PIKL L.A. The game night brought together celebrities, community partners and supporters to raise awareness for a cause that Baird has been vocal about for several years . Several notable guests attended the event, including her children, Eilish and O’Connell; Angelina Jolie and her son, Pax Jolie-Pitt; Kristen Bell and Dax Shepard; and former Spice Girls singer Melanie C. “Our work in L.A. has taken on even greater urgency since the fires last year,” Baird exclusively told The Hollywood Reporter .…