Jennifer Aniston had an exclusive 40th birthday party at her own Hollywood home sources have told E! News. Insiders say guests at the party included her former Friends co-star Courtney Cox Arquette, Spider-Man actor Tobey Maguire, Tom Hanks, Sheryl Crow, Oprah Winfrey and on/off boyfriend John Mayer. "She looked hot and she and John looked really happy," the source added.


























