Altho Sparrow James Midnight, the youngest child of Nicole Richie and Joel Madden, doesn’t turn 1 year old until this coming Thursday September 9 his parents decided to celebrate his birthday early this past weekend with about 50 of Sparrow‘s closest friends. Here are a few photos of Sparrow and his big sister Harlow Winter Kate running a few errands with their nanny early in the day Saturday before they returned home for the big birthday celebration:

Nicole Richie may have parted from her past party girl ways, but she can still throw a good bash – especially if she’s celebrating her son’s first birthday. Richie, along with fiancé Joel Madden and big sis Harlow, 2 ½, held a party for Sparrow Saturday. He turns 1 on Sept. 9. About 50 guests, including actress Ellen Pompeo and her daughter Stella Luna, 11 months, and Sparrow’s uncle Benji Madden, gathered in the backyard of the family’s Hollywood Hills home and noshed on birthday cake. The backyard was decorated with red, green, orange and purple “Happy Birthday” balloons for the occasion. “Nicole was keeping the party simple to not overwhelm Sparrow,” a source at the party tells PEOPLE. “Everyone seemed to have a great time.”

LMAOOOOO! I’m so glad that Nicole decided to keep the party “simple” at only 50 guests because more party attendees would SURELY overwhelm little Sparrow ;) In any event, it’s kinda crazy to think that Nic/Joel‘s second child is already turning 1 … hello, that baby was just born, like, yesterday! It sounds like everyone had a fun time over the weekend … let’s send all our Birthday Lurve to little Sparrow on his big day!

PS: Love to Miss Diva, Harlow Winter! Homegirl is workin’ the Hell out of her walk.

[Photo credit: X17; Source]