Camila Mendes is cool in black sleeveless dress with buttons down the front in LA

Kate Mara dons a summery white dress on a stroll with her 13-month-old daughter in Los Angeles

Cindy Crawford dons a chic yellow dress as she enjoys lunch with female pal at Soho House in Malibu

Alex Trebek donates $500k to faith-based nonprofit for homeless facility in LA's San Fernando Valley