Kate reportedly listened to Bruno Mars, Calvin Harris and Of Monters and Men during her labour with Princess Charlotte.
So what songs will she be listening to this time round?
We expect that Kate will be filling her iPod with all her favourite inspirational songs for the birth including songs by Pink, Madonna and Katy Perry.
But we wouldn’t be surprised if there were some Ellie Goulding songs on there as well.
After all, the singer performed for the couple at their wedding reception.