New mom Kim Kardashian is looking to a fellow celebrity mom for inspiration as she's reportedly working to lose the 50 pounds of weight she gained while pregnant with her daughter, North West. 

Kardashian, who gave birth just four weeks ago to North, is excited about plans to reveal her post-baby figure on her mom's television show, "Kris," Us Weekly reports. But a source shares that Kardashian "won't leave the house until she's thinner" and successfully reaches her ideal weight. 

The star is said to have lost 20 of the 50 pounds, but the source adds that "she's frustrated she can't exercise yet." But when she does resume working out, Kardashian has her eyes set on mimicking the recent baby bounce-back of one of Hollywood's hottest moms, Beyoncé.

"She really looks up to Beyoncé," one of Kardashian's friends says. 

Kardashian was recently revealed as one of the victims of a medical record hacking at Cedars Sinai, the hospital where North was born. 

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