The 'When Love Takes Over' hitmaker had been concerned about what she would give her former Destiny's Child bandmate - who welcomed daughter Blue Ivy Carter into the world on Saturday (07.01.12) - as a baby shower present.
However, she has decided upon a quirky present for the newborn, and reportedly opted for a green long-sleeved onesie adorned with the iconic image of Bob Marley while shopping in upscale New York kids' boutique Lucky Wang earlier today (10.01.12).
Kelly has previously admitted although she had prepared herself for changing "messy diapers" while babysitting the tot, she had "no idea" what she would buy for the bundle of joy because her dad, rapper Jay-Z, would ensure she had everything she could possibly want.
She told BANG Showbiz: "I'm so happy for my sister and her husband. They're so happy In This Moment right now, as they should be. They've made a little bundle of love, I'm so excited for them.
"I have no idea what I'm going to buy Beyonce at the baby shower because Jay is going to buy that little girl every single thing possible. She won't be spoilt but she will be very well looked-after.
"I'll be on hand for babysitting duties and I'm actually very good with messy diapers!"