New mum leaves baby Harlow at home while she hits the town

Nicole Richie only gave birth last month but she’s already back on the party scene.

The socialite took a well-deserved break from looking after daughter Harlow Winter and hit 4 parties in 2 days.

She kicked off the weekend with partner Joel Madden at the opening of the Eli Broad Contemporary Art Museum in LA.

Wearing a white dress, she showed off her post-baby figure as she sat chatting to pal Christina Aguilera, 27 – who gave birth to son Max on the same day.

Nicole 26, and Joel, 28, later moved on to Clive Davis’ pre-Grammy bash at the Beverly Hills’ Hilton Hotel, but only stayed for a couple of hours, reports Us Magazine.

‘We have to get home!’ Joel was overhead telling a friend.

‘[Harlow] only sleeps three hours at a time. She’s with Grandma now, but if she wakes up…’

Nicole Richie and Joel Madden

The next night they were spotted out again – this time at Entertainment Weekly’s post-Grammy party in LA.

An hour later they met up with Joel’s brother Benji to make a final appearance at Sony BMG’s post-Grammy party, where they hung out till the early hours.

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Alison Adey